https://opac.ru.ac.bd/cgi-bin/koha/opac-search.pl?q=ccl=an%3A197880&sort_by=relevance&format=rss 2 0 100 ISBN: https://opac.ru.ac.bd/cgi-bin/koha/opac-detail.pl?biblionumber=66830 By Hegner, Robert William,.
New York : Macmillan, 1959 .
x, 726 p. : , Eighth ed. by K. A. Stiles, R. W. Hegner, and R. A. Boolootian; 9th ed. by R. A. Boolootian and K. A. Stiles. 27 cm..

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]]> https://opac.ru.ac.bd/cgi-bin/koha/opac-detail.pl?biblionumber=66830 ISBN: https://opac.ru.ac.bd/cgi-bin/koha/opac-detail.pl?biblionumber=75134 By Hegner, Robert William,.
New York : Macmillan, 1968 .
xviii, 619 p.: 23 cm..

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