Biological Sciences Curriculum Study. (1969). Biological science, an inquiry into life, second edition: Teacher's manual. Harcourt, Brace & World.
Citace podle Chicago (17th ed.)Biological Sciences Curriculum Study. Biological Science, an Inquiry into Life, Second Edition: Teacher's Manual. New York: Harcourt, Brace & World, 1969.
Citace podle MLA (8th ed.)Biological Sciences Curriculum Study. Biological Science, an Inquiry into Life, Second Edition: Teacher's Manual. Harcourt, Brace & World, 1969.
Upozornění: Tyto citace jsou generovány automaticky. Nemusí být zcela správně podle citačních pravidel..