APA (7 ম সংস্করণ) উদ্ধৃতি

Warfel, H. E. (1950). Shark fishing potentialities of the Philippine seas. United States Government Printing Office.

শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতি

Warfel, Herbert Elmer. Shark Fishing Potentialities of the Philippine Seas. Washington: United States Government Printing Office, 1950.

M.L.A (9 ম সংস্করণ) উদ্ধৃতি

Warfel, Herbert Elmer. Shark Fishing Potentialities of the Philippine Seas. United States Government Printing Office, 1950.