Van Riper, J. E. (1971). Man's Physical World. (2a ed.). New York: McGraw-Hill Book Company..
Chicago Style CitationVan Riper, Joseph E. Man's Physical World. 2a ed. New York: McGraw-Hill Book Company., 1971.
MLA CitationVan Riper, Joseph E. Man's Physical World. 2a ed. New York: McGraw-Hill Book Company., 1971.
Warning: These citations may not always be 100% accurate.