https://sibi.upn.mx/cgi-bin/koha/opac-search.pl?q=ccl=au%3A%22Hancock%2C%20Alan%22&sort_by=title_az&format=rss 3 0 50 ISBN:9233017869 https://sibi.upn.mx/cgi-bin/koha/opac-detail.pl?biblionumber=45015 ]]> By Hancock, Alan.
Quito : Andina, 1981 .
222 p. 9233017869

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]]> https://sibi.upn.mx/cgi-bin/koha/opac-detail.pl?biblionumber=45015 ISBN:9231012584 (UNESCO) | 058241136X https://sibi.upn.mx/cgi-bin/koha/opac-detail.pl?biblionumber=132628 ]]> By Hancock, Alan..
London : | Paris : Longman; | UNESCO, 1976 .
261 p. 9231012584 (UNESCO) | 058241136X

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]]> https://sibi.upn.mx/cgi-bin/koha/opac-detail.pl?biblionumber=132628 ISBN:9231021761 https://sibi.upn.mx/cgi-bin/koha/opac-detail.pl?biblionumber=129711 ]]> By Hancock, Alan..
París : UNESCO, 1984 .
244 p. : 9231021761

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