Παραπομπή σε μορφή APA (7η εκδ.)

Varma, P. (2017). Rice Productivity and Food Security in India: A Study of the System of Rice Intensification. Springer Singapore : Imprint: Springer.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Varma, Poornima. Rice Productivity and Food Security in India: A Study of the System of Rice Intensification. Singapore: Springer Singapore : Imprint: Springer, 2017.

Παραπομπή σε μορφή MLA (8th εκδ.)

Varma, Poornima. Rice Productivity and Food Security in India: A Study of the System of Rice Intensification. Springer Singapore : Imprint: Springer, 2017.