APA (7 ম সংস্করণ) উদ্ধৃতি

Chopra, K. R. (1999). Valuation of forest resources: An application of the contingent valuation method. Institute of Economic Growth.

শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতি

Chopra, Kanchan Ratna. Valuation of Forest Resources: An Application of the Contingent Valuation Method. Delhi: Institute of Economic Growth, 1999.

M.L.A (8 ম সংস্করণ) উদ্ধৃতি

Chopra, Kanchan Ratna. Valuation of Forest Resources: An Application of the Contingent Valuation Method. Institute of Economic Growth, 1999.