Science Curriculum Improvement Study, Conard, D., & Lawson, C. A. (1969). Populations (Preliminary ed.). Science Curriculum Improvement Study, Lawrence Hall of Science, University of California.
Citace podle Chicago (17th ed.)Science Curriculum Improvement Study, David Conard, a Chester A. Lawson. Populations. Preliminary ed. [Berkeley, Calif.: Science Curriculum Improvement Study, Lawrence Hall of Science, University of California, 1969.
Citace podle MLA (8th ed.)Science Curriculum Improvement Study, et al. Populations. Preliminary ed. Science Curriculum Improvement Study, Lawrence Hall of Science, University of California, 1969.
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