APA (7 ম সংস্করণ) উদ্ধৃতি

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.

শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতি

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.

M.L.A (8 ম সংস্করণ) উদ্ধৃতি

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.