Thom, T. J. (1997). The relationship between the distribution of otter (Lutra lutra, L.) signs and habitat in the upper Tyne river catchment, NE England.
Citace podle Chicago (17th ed.)Thom, Timothy James. The Relationship Between the Distribution of Otter (Lutra Lutra, L.) Signs and Habitat in the Upper Tyne River Catchment, NE England. 1997.
Citace podle MLA (8th ed.)Thom, Timothy James. The Relationship Between the Distribution of Otter (Lutra Lutra, L.) Signs and Habitat in the Upper Tyne River Catchment, NE England. 1997.
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