Drapkin, H., Brandwein, P. F., & Beck, A. D. (1964). The world of living things: Teacher's manual and resource guide with answer key to science teaching tests. Harcourt Brace & World.
Chicago Style (17th ed.) CitationDrapkin, Herbert, Paul F. Brandwein, and Alfred D. Beck. The World of Living Things: Teacher's Manual and Resource Guide with Answer Key to Science Teaching Tests. New York: Harcourt Brace & World, 1964.
MLA (9th ed.) CitationDrapkin, Herbert, et al. The World of Living Things: Teacher's Manual and Resource Guide with Answer Key to Science Teaching Tests. Harcourt Brace & World, 1964.
Warning: These citations may not always be 100% accurate.