APA
(1961). Proceedings of the fourth conference of secretaries of state boards of secondary education. New Delhi, India: National Council of Educational Research and Training.
Chicago
1961. Proceedings of the fourth conference of secretaries of state boards of secondary education. New Delhi, India: National Council of Educational Research and Training.
Harvard
(1961). Proceedings of the fourth conference of secretaries of state boards of secondary education. New Delhi, India: National Council of Educational Research and Training.
MLA
Proceedings of the fourth conference of secretaries of state boards of secondary education. New Delhi, India: National Council of Educational Research and Training. 1961.
