APA (7 ম সংস্করণ) উদ্ধৃতি

(1967). Developing programmed instructional materials ; a handbook for program writers / [by] James E. Espich & Bill Williams.

শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতি

Developing Programmed Instructional Materials ; a Handbook for Program Writers / [by] James E. Espich & Bill Williams. 1967.

M.L.A (9 ম সংস্করণ) উদ্ধৃতি

Developing Programmed Instructional Materials ; a Handbook for Program Writers / [by] James E. Espich & Bill Williams. 1967.