APA (7 ম সংস্করণ) উদ্ধৃতি

Jóhansen, J. (1985). Studies in the vegetational history of the Faroe and Shetland Islands. Føroya fróðskaparfelag.

শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতি

Jóhansen, Jóhannes. Studies in the Vegetational History of the Faroe and Shetland Islands. Tórshavn: Føroya fróðskaparfelag, 1985.

M.L.A (8 ম সংস্করণ) উদ্ধৃতি

Jóhansen, Jóhannes. Studies in the Vegetational History of the Faroe and Shetland Islands. Føroya fróðskaparfelag, 1985.