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.
Chicago-viite (17. p.)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.
MLA-viite (8. p.)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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