RIPER, J. E. V. (1971). Man's Physical World. McGraw-Hill Book Company.
Chicago Style (17th ed.) CitationRIPER, Joseph E. Van. Man's Physical World. McGraw-Hill Book Company, 1971.
MLA (8th ed.) CitationRIPER, Joseph E. Van. Man's Physical World. McGraw-Hill Book Company, 1971.
Warning: These citations may not always be 100% accurate.