Cita APA (7th ed.)

Dwivedi, A., & Gupta, G. (1993). Afforestation of arid lands. Scientific.

Cita Chicago (17th ed.)

Dwivedi, A.P, i G.N Gupta. Afforestation of Arid Lands. Jodhpur: Scientific, 1993.

Cita MLA (9th ed.)

Dwivedi, A.P, i G.N Gupta. Afforestation of Arid Lands. Scientific, 1993.