(1981). OBIS sampler developed by Outdoor Biology Instructional Strategies, Lawrence Hall of Science, University of California, Berkeley, California. [kit].
Citace podle Chicago (17th ed.)OBIS Sampler Developed by Outdoor Biology Instructional Strategies, Lawrence Hall of Science, University of California, Berkeley, California. [kit]. 1981.
Citace podle MLA (9th ed.)OBIS Sampler Developed by Outdoor Biology Instructional Strategies, Lawrence Hall of Science, University of California, Berkeley, California. [kit]. 1981.
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