Παραπομπή σε μορφή APA (7η εκδ.)

Sengupta, G. C. (1981). Constraints to higher agricultural productivity in Orissa and strategies to overcome: Position paper. Directorate of Agriculture & Food Production.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Sengupta, G. C. Constraints to Higher Agricultural Productivity in Orissa and Strategies to Overcome: Position Paper. Bhubaneswar, Orissa: Directorate of Agriculture & Food Production, 1981.

Παραπομπή σε μορφή MLA (8th εκδ.)

Sengupta, G. C. Constraints to Higher Agricultural Productivity in Orissa and Strategies to Overcome: Position Paper. Directorate of Agriculture & Food Production, 1981.