http://biblioteca.ubl.ac.cr/cgi-bin/koha/opac-search.pl?q=ccl=au%3AWhitehead%2C%20Alfred%20North%2C%201861-1947&format=rss2 5 0 50 ISBN http://biblioteca.ubl.ac.cr/cgi-bin/koha/opac-detail.pl?biblionumber=7286 By Whitehead, Alfred North, 1861-1947. New York : Free Press, 1967 . ix, 212 p.; 21 cm..

]]> http://biblioteca.ubl.ac.cr/cgi-bin/koha/opac-detail.pl?biblionumber=7286 ISBN http://biblioteca.ubl.ac.cr/cgi-bin/koha/opac-detail.pl?biblionumber=11690 By Whitehead, Alfred North, 1861-1947. Buenos Aires : Compañía General Fabril Editora, 1961 . 308 p. ; 21 cm..

]]> http://biblioteca.ubl.ac.cr/cgi-bin/koha/opac-detail.pl?biblionumber=11690 ISBN 0-02-934570-7 http://biblioteca.ubl.ac.cr/cgi-bin/koha/opac-detail.pl?biblionumber=7285 By Whitehead, Alfred North, 1861-1947. New York : Free Press, 1978 . xxxi, 413 p. : , Gifford lectures: 1927-1928. 24 cm.. 0-02-934570-7

]]> http://biblioteca.ubl.ac.cr/cgi-bin/koha/opac-detail.pl?biblionumber=7285 ISBN http://biblioteca.ubl.ac.cr/cgi-bin/koha/opac-detail.pl?biblionumber=7284 By Whitehead, Alfred North, 1861-1947. New York : Free Press, 1967 . x, 307 p. : 21 cm..

]]> http://biblioteca.ubl.ac.cr/cgi-bin/koha/opac-detail.pl?biblionumber=7284 ISBN http://biblioteca.ubl.ac.cr/cgi-bin/koha/opac-detail.pl?biblionumber=16055 By Whitehead, Alfred North, 1861-1947. Madrid : Gredos, 1968 . 226 p. ; 20 cm..

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