APA (7 ম সংস্করণ) উদ্ধৃতি

Hartman, G. (1994). Ecological studies of a reintroduced beaver (Castor fiber) population. Swedish University of Agricultural Sciences, Dept. of Wildlife Ecology.

শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতি

Hartman, Göran. Ecological Studies of a Reintroduced Beaver (Castor Fiber) Population. Uppsala, Sweden: Swedish University of Agricultural Sciences, Dept. of Wildlife Ecology, 1994.

M.L.A (8 ম সংস্করণ) উদ্ধৃতি

Hartman, Göran. Ecological Studies of a Reintroduced Beaver (Castor Fiber) Population. Swedish University of Agricultural Sciences, Dept. of Wildlife Ecology, 1994.