Change style bibliographies

Question

I want to change the style of font for "References". I want the title of books and Articles stay in BOLD and don't in ITALIC BOLD how stay on my document.

My style stay:

KNUTH, D. E. The art of computer programming, Volume 16: Fundamental Algorithms. [S.l.]: Addison-Wesley, 1968.

I would like:

KNUTH, D. E. The art of computer programming, Volume 16: Fundamental Algorithms. [S.l.]: Addison-Wesley, 1968.

---

I'm use the style ABNT-ALF \bibliographustyle{abnt-alf}

This is not my all code, however is possible see the part that I need help:

Main Document (with settings):

\documentclass[a4paper]{article}
\usepackage[brazil,brazilian]{babel}
\usepackage[ansinew]{inputenc}
 \usepackage{abnt-alf}
\usepackage[alf]{abntcite}

\newcommand{\qcounts}{{\normalfont\textit{quadrat counts}}{}}
\newcommand{\q}{{\normalfont\textit{quadrat}}{}}
\newcommand{\qs}{{\normalfont\textit{quadrats}}{}}
\newcommand{\citrus}{{\normalfont\textit{Citrus}}{}}
\newcommand{\msc}{{\normalfont\textit{Morte Súbita dos Citrus}}{}}
\newcommand{\MSC}{\acronym{MSC}{}}
\newcommand{\geoR}{{\normalfont\textsf{geoR}}{}}
\newcommand{\geoRglm}{{\normalfont\textsf{geoRglm}}{}}
\newcommand{\splancs}{{\normalfont\textsf{splancs}}{}}
\title{Modelo autologístico para dados de citrus}

\author{
Fabio CORDEIRO 
\footnote{Programa de Pós-graduação em Engenharia Elétrica, 
 Pontifícia Universidade Católica de Minas Gerais. 
Caixa Postal 00000, CEP 81531-990, Belo Horizonte, Minas Gerais, Brasil. 
E-mail: [email protected]}\\
}

\begin{document}
\maketitle
\section{resumo} 

\section{Introducao}

Testando referencias \cite{knuth}

\section{metodologia}

\bibliographystyle{abnt-alf} 

\bibliography{bibliografia} %%%%%%%%%

\end{document}

My bibliography file:

@book{knuth,
    author = {Donald E. Knuth},
    title = {\textbf{The art of computer programming}, Volume 16: Fundamental Algorithms},
    publisher = {Addison-Wesley},
    year = {1968}
}

Answer 1

With abntcite package, you can choose the emph style with the option abnt-emphasize during the package load with

\usepackage[alf,abnt-emphasize=bf]{abntcite}

Here's a MWE:

\documentclass{article}
% to embed a .bib file in the source
\begin{filecontents}{\jobname.bib}
@inbook{knutha,
    author = {Donald E. Knuth},
    booktitle = {The art of computer programming},
    volume = {16},
    title = {Fundamental Algorithms},
    publisher = {Addison-Wesley},
    year = {1968}
}
@book{knuthb,
    author = {Donald E. Knuth},
    title = {The art of computer programming},
    subtitle = {Volume 16, Fundamental Algorithms},
    publisher = {Addison-Wesley},
    year = {1968}
}
\end{filecontents}

\usepackage[alf,abnt-emphasize=bf]{abntcite}

\begin{document}

Here's how I'd quote that book: \cite{knutha}; and here's (almost) how you asked for: \cite{knuthb}

\bibliography{\jobname}

\end{document}

And the output:

Please refer to the documentation in the abntex-doc-<version>.<zip> (or .tar.gz, etc) file on the project's page.