Marsh, F. L. (1976). Variation and fixity in nature: The meaning of diversity and discontinuity in the world of living things, and their bearing on creation and evolution. Pacific Press.
Citace podle Chicago (17th ed.)Marsh, Frank L. Variation and Fixity in Nature: The Meaning of Diversity and Discontinuity in the World of Living Things, and Their Bearing on Creation and Evolution. Mountain View, CA: Pacific Press, 1976.
Citace podle MLA (9th ed.)Marsh, Frank L. Variation and Fixity in Nature: The Meaning of Diversity and Discontinuity in the World of Living Things, and Their Bearing on Creation and Evolution. Pacific Press, 1976.
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