Παραπομπή APA

Das, S. (2017). Groundwater resources of India. National Book Trust.

Παραπομπή Chicago Style

Das, Subhajyoti. Groundwater Resources of India. New Delhi: National Book Trust, 2017.

Παραπομπή MLA

Das, Subhajyoti. Groundwater Resources of India. National Book Trust, 2017.