Schneider, H., & Schneider, N. (1973). Science for hear and now: With process blocks (4th ed.). D.C. Heath.
Citace podle Chicago (17th ed.)Schneider, Herman, a Nina Schneider. Science for Hear and Now: With Process Blocks. 4th ed. Lexington, MA: D.C. Heath, 1973.
Citace podle MLA (9th ed.)Schneider, Herman, a Nina Schneider. Science for Hear and Now: With Process Blocks. 4th ed. D.C. Heath, 1973.
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