https://sibi.upn.mx/cgi-bin/koha/opac-search.pl?q=ccl=au%3A%22Lefrancois%2C%20Guy%20R.%2C%22&sort_by=title_az&format=rss 4 0 50 ISBN:9681600517 https://sibi.upn.mx/cgi-bin/koha/opac-detail.pl?biblionumber=365 ]]> By Lefrancois, Guy R.,.
México : FCE, 1978 .
514 p. 9681600517

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]]> https://sibi.upn.mx/cgi-bin/koha/opac-detail.pl?biblionumber=365 ISBN:9681649540 https://sibi.upn.mx/cgi-bin/koha/opac-detail.pl?biblionumber=104779 ]]> By Lefrancois, Guy R.,.
México : FCE, 2000 .
704 p. : 9681649540

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]]> https://sibi.upn.mx/cgi-bin/koha/opac-detail.pl?biblionumber=104779 ISBN:9706860134 https://sibi.upn.mx/cgi-bin/koha/opac-detail.pl?biblionumber=95441 ]]> By Lefrancois, Guy R.,.
México : International Thomson, 2001 .
xxiii,669 p. : 9706860134

]]> Place hold on El ciclo de la vida /

]]> https://sibi.upn.mx/cgi-bin/koha/opac-detail.pl?biblionumber=95441 ISBN:9706861025 https://sibi.upn.mx/cgi-bin/koha/opac-detail.pl?biblionumber=106938 ]]> By Coon, Dennis,.
México : Internatinal Thomson, 2001 .
v, 180 p. : 9706861025

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