APA (7 ম সংস্করণ) উদ্ধৃতি

Butler, G. D. (1936). Playgrounds, their administration and operation: National recreation association. A.S. Barnes.

শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতি

Butler, George D. Playgrounds, Their Administration and Operation: National Recreation Association. New York: A.S. Barnes, 1936.

M.L.A (8 ম সংস্করণ) উদ্ধৃতি

Butler, George D. Playgrounds, Their Administration and Operation: National Recreation Association. A.S. Barnes, 1936.