Human ecology and informal groups [microform]

Sonraí bibleagrafaíochta
Príomhchruthaitheoir:	Torres, Lilia Arbues 1936-
Formáid:	Visual Material
Foilsithe / Cruthaithe:	Quezon City Photoduplication Service. University of the Philippines Library 1977.
Ábhair:	Human ecology. Social groups.