Citace podle APA (7th ed.)

Blough, G. O., & Schwartz, J. (1990). Elementary school science and how to teach it (8th ed.). Harcourt brace.

Citace podle Chicago (17th ed.)

Blough, Glenn O., a Julius Schwartz. Elementary School Science and How to Teach It. 8th ed. Philadelphia: Harcourt brace, 1990.

Citace podle MLA (9th ed.)

Blough, Glenn O., a Julius Schwartz. Elementary School Science and How to Teach It. 8th ed. Harcourt brace, 1990.

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