Heyer, W. R. (1994). Measuring and monitoring biological diversity. Smithsonian Institution Press.
Čikaški stil citiranja (17. izdanje)Heyer, W. Ronald. Measuring and Monitoring Biological Diversity. Washington: Smithsonian Institution Press, 1994.
MLA način citiranja (9. izdanje)Heyer, W. Ronald. Measuring and Monitoring Biological Diversity. Smithsonian Institution Press, 1994.
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