Tuxill, J. D., & Peterson, J. A. (1998). Losing strands in the web of life: Vertebrate declines and the conservation of biological diversity. Worldwatch Institute.
Citace podle Chicago (17th ed.)Tuxill, John D., a Jane A. Peterson. Losing Strands in the Web of Life: Vertebrate Declines and the Conservation of Biological Diversity. Washington, DC: Worldwatch Institute, 1998.
Citace podle MLA (8th ed.)Tuxill, John D., a Jane A. Peterson. Losing Strands in the Web of Life: Vertebrate Declines and the Conservation of Biological Diversity. Worldwatch Institute, 1998.
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