# How to change the order of first/last name in biblatex? [closed]

I have a question on changing the order of first/last names of authors using biblatex. For example, the .bib file contains one entry as:

@incollection{Liu:2001vx, <br>
author = {Liu, Jane and West, Mike}, <br>
title = {{Combined parameter and state estimation in simulation-based filtering}},<br>
booktitle = {Sequential Monte Carlo methods in practice},<br>
year = {2001},<br>
editor = {Doucet, Arnaud and de Freitas, Nando and Gordon, Neil},<br>
pages = {197--224},<br>
publisher = {Springer}<br>
}


I want the compiled output of author names to be in the form of First von Last, Jr. How to make biblatex to output the author names in the desired order. For example, the West, Mike is in the .bib file, I want the name to be printed as Mike West.

I appreciate for your kind and prompt help.

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## closed as too localized by lockstep, Paul Gaborit, zeroth, tohecz, Marco DanielSep 27 '12 at 17:59

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This depends on the bibliography style. Have a look at tex.stackexchange.com/a/13076/510 and there at the section "Bibliography – order of first names and last names". –  lockstep Sep 19 '12 at 16:27
Thank you for the response. However, I still have questions. I tried to add <br>\DeclareNameAlias{sortname}{first-last} \bibliographystyle{unsrt} \bibliography{BMS}in my .tex file –  Jun Liu Sep 20 '12 at 11:39
Thank you for the response. However, I still have questions. I tried to add <br>\DeclareNameAlias{sortname}{first-last}<br> \bibliographystyle{unsrt}<br> \bibliography{BMS}<br> in my .tex file. Then, use pdflatex to compile, and I got an error message "! Undefined control sequence. l.3 \DeclareNameAlias {sortname}{first-last}"<br> Could yu help me more on making DeclareNameAlias to work with bibliographystyle. Thank you. –  Jun Liu Sep 20 '12 at 11:51
Thank you for the response. However, I still have questions. I tried to add \DeclareNameAlias{sortname}{first-last} \bibliographystyle{unsrt} \bibliography{BMS} in my .tex file. Then, use pdflatex to compile, and I got an error message "! Undefined control sequence. l.3 \DeclareNameAlias {sortname}{first-last}" Could yu help me more on making DeclareNameAlias to work with bibliographystyle? Thank you. –  Jun Liu Sep 20 '12 at 14:07
@JunLiu The first-last formatting directive was added to biblatex 1.0. If you're using an earlier version, you should upgrade. –  Audrey Sep 20 '12 at 18:20