Nyström, K. G. K. (1999). Foraging in relation to aspects of morphology, body condition, reproduction, and habitat variability in three bird species. Göteborg University, Faculty of Natural Sciences.
Citace podle Chicago (17th ed.)Nyström, Kjell Gunnar Kenneth. Foraging in Relation to Aspects of Morphology, Body Condition, Reproduction, and Habitat Variability in Three Bird Species. Göteborg: Göteborg University, Faculty of Natural Sciences, 1999.
Citace podle MLA (8th ed.)Nyström, Kjell Gunnar Kenneth. Foraging in Relation to Aspects of Morphology, Body Condition, Reproduction, and Habitat Variability in Three Bird Species. Göteborg University, Faculty of Natural Sciences, 1999.
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