Singh, Y. P., Pareek, U. N., & Arora, D. R. (1974). Diffusion of an interdiscipline: Social sciences in agriculture education. Published by New Heights for Indian Society of Extension Education : stockists and distributors, Rainbow Book Co..
Trích dẫn kiểu Chicago (xuất bản lần thứ 7)Singh, Yogendra Pal, Udai Narain Pareek, và D. R. Arora. Diffusion of an Interdiscipline: Social Sciences in Agriculture Education. Delhi: Published by New Heights for Indian Society of Extension Education : stockists and distributors, Rainbow Book Co., 1974.
Trích dẫn kiểu MLA (xuất bản lần thứ 8)Singh, Yogendra Pal, et al. Diffusion of an Interdiscipline: Social Sciences in Agriculture Education. Published by New Heights for Indian Society of Extension Education : stockists and distributors, Rainbow Book Co., 1974.