APA-referens

Dhawan, B. D. (1986). Economics of groundwater irrigation in hard rock regions.

Chicago-stil citat

Dhawan, B D. Economics of Groundwater Irrigation in Hard Rock Regions. Agricole Publishing Academy, New Delhi, 1986.

MLA-referens

Dhawan, B D. Economics of Groundwater Irrigation in Hard Rock Regions. 1986.