APA (7 ম সংস্করণ) উদ্ধৃতি

Arnbom, T. (1994). Maternal investment in male and female offspring in the southern elephant seal. Dept. of Zoology, Stockholm University.

শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতি

Arnbom, Tom. Maternal Investment in Male and Female Offspring in the Southern Elephant Seal. Stockholm, Sweden: Dept. of Zoology, Stockholm University, 1994.

M.L.A (8 ম সংস্করণ) উদ্ধৃতি

Arnbom, Tom. Maternal Investment in Male and Female Offspring in the Southern Elephant Seal. Dept. of Zoology, Stockholm University, 1994.