Cita APA (7th ed.)

Khanna, G. N. (1993). Global environmental crisis and management. Ashish Pub. House.

Cita Chicago (17th ed.)

Khanna, Gopesh Nath. Global Environmental Crisis and Management. New Delhi: Ashish Pub. House, 1993.

Cita MLA (9th ed.)

Khanna, Gopesh Nath. Global Environmental Crisis and Management. Ashish Pub. House, 1993.