Lawrence, V. B., & Parsegian, V. L. (1970). Teacher's guide: Introduction to natural science, part two: the life sciences / V. B. Lawrence. Academic Press.
Citace podle Chicago (17th ed.)Lawrence, V. B., a V. L. Parsegian. Teacher's Guide: Introduction to Natural Science, Part Two: The Life Sciences / V. B. Lawrence. Academic Press: Academic Press, 1970.
Citace podle MLA (9th ed.)Lawrence, V. B., a V. L. Parsegian. Teacher's Guide: Introduction to Natural Science, Part Two: The Life Sciences / V. B. Lawrence. Academic Press, 1970.
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