Παραπομπή APA

Dan Singh & Singh, B. K. (2011). Agricultural extension and rural development. Narendra Publishing House.

Παραπομπή Chicago Style

Dan Singh και B K. Singh. Agricultural Extension and Rural Development. Delhi: Narendra Publishing House, 2011.

Παραπομπή MLA

Dan Singh και B K. Singh. Agricultural Extension and Rural Development. Narendra Publishing House, 2011.