APA (7 ম সংস্করণ) উদ্ধৃতি

Chopra, R. N., & Chopra, I. C. (1965). Drug addiction: With special reference to India (First edition.). Council of Scientific & Industrial Research.

শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতি

Chopra, R. N., এবং I. C. Chopra. Drug Addiction: With Special Reference to India. First edition. New Delhi: Council of Scientific & Industrial Research, 1965.

M.L.A (8 ম সংস্করণ) উদ্ধৃতি

Chopra, R. N., এবং I. C. Chopra. Drug Addiction: With Special Reference to India. First edition. Council of Scientific & Industrial Research, 1965.