Symposium on Population Pressures upon Physical and Social Resources in the Developing Lands, P. S. U. (1970). Geography and a crowding world. Oxford University Press.
Chicago Style (17th ed.) CitationSymposium on Population Pressures upon Physical and Social Resources in the Developing Lands, Pennsylvania State University. Geography and a Crowding World. New York: Oxford University Press, 1970.
MLA (9th ed.) CitationSymposium on Population Pressures upon Physical and Social Resources in the Developing Lands, Pennsylvania State University. Geography and a Crowding World. Oxford University Press, 1970.
Warning: These citations may not always be 100% accurate.