APA
International Association of Agricultural Librarians and Documentalists, Boalch D. e., . (1960). World directory of agricultural libraries and documentation centres. Harpenden: England.
Chicago
International Association of Agricultural Librarians and Documentalists, Boalch D.F ed, . 1960. World directory of agricultural libraries and documentation centres. Harpenden: England.
Harvard
International Association of Agricultural Librarians and Documentalists, Boalch D. e., . (1960). World directory of agricultural libraries and documentation centres. Harpenden: England.
MLA
International Association of Agricultural Librarians and Documentalists, Boalch D.F ed, . World directory of agricultural libraries and documentation centres. Harpenden: England. 1960.
