APA (7 ম সংস্করণ) উদ্ধৃতি

National Safety Council. (1956). Supervisors safety manual; better production without injury and waste from accidents. s.n.

শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতি

National Safety Council. Supervisors Safety Manual; Better Production Without Injury and Waste from Accidents. Chicago: s.n, 1956.

M.L.A (9 ম সংস্করণ) উদ্ধৃতি

National Safety Council. Supervisors Safety Manual; Better Production Without Injury and Waste from Accidents. s.n, 1956.