Cita APA (7th ed.)

Sengupta, N. (1993). User-friendly irrigation designs. Sage Publications.

Cita Chicago (17th ed.)

Sengupta, Nirmal. User-friendly Irrigation Designs. New Delhi ; Newbury Park: Sage Publications, 1993.

Cita MLA (8th ed.)

Sengupta, Nirmal. User-friendly Irrigation Designs. Sage Publications, 1993.