APA (7 ম সংস্করণ) উদ্ধৃতি

Grenfell, D. The Angolan papers of David Grenfell. University of York, Photographic Dept..

শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতি

Grenfell, David. The Angolan Papers of David Grenfell. [York, England]: University of York, Photographic Dept..

M.L.A (8 ম সংস্করণ) উদ্ধৃতি

Grenfell, David. The Angolan Papers of David Grenfell. University of York, Photographic Dept..