APA (7 ম সংস্করণ) উদ্ধৃতি

International Council for Correspondence Education. World Conference & Wentworth, R. B. (1978). Correspondence education, dynamic and diversified: Eleventh World Conference, Hotel Ashoka, New Delhi, India, 8-15 November 1978. s.n..

শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতি

International Council for Correspondence Education. World Conference এবং Robert B. Wentworth. Correspondence Education, Dynamic and Diversified: Eleventh World Conference, Hotel Ashoka, New Delhi, India, 8-15 November 1978. [s.l.: s.n., 1978.

M.L.A (8 ম সংস্করণ) উদ্ধৃতি

International Council for Correspondence Education. World Conference এবং Robert B. Wentworth. Correspondence Education, Dynamic and Diversified: Eleventh World Conference, Hotel Ashoka, New Delhi, India, 8-15 November 1978. s.n., 1978.