Cita APA (7a ed.)

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..

Cita Chicago Style (17a ed.)

International Council for Correspondence Education. World Conference y 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.

Cita MLA (8a ed.)

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