Tregar, S. (2013). Writing Perl Modules for CPAN. Apress.
Trích dẫn kiểu ChicagoTregar, Sam. Writing Perl Modules for CPAN. Apress, 2013.
MLA引文Tregar, Sam. Writing Perl Modules for CPAN. Apress, 2013.
警告：这些引文格式不一定是100％准确.
APA引文