APA (7 ম সংস্করণ) উদ্ধৃতি

Wilhelms, F. T. (1973). Supervision in a new key. Association for Supervision and Curriculum Development.

শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতি

Wilhelms, Fred T. Supervision in a New Key. Washington: Association for Supervision and Curriculum Development, 1973.

M.L.A (9 ম সংস্করণ) উদ্ধৃতি

Wilhelms, Fred T. Supervision in a New Key. Association for Supervision and Curriculum Development, 1973.