APA (7 ম সংস্করণ) উদ্ধৃতি

Chowdhury, P. N. (1973). Economics of research & development. People's Pub. House.

শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতি

Chowdhury, P. N. Economics of Research & Development. New Delhi: People's Pub. House, 1973.

M.L.A (8 ম সংস্করণ) উদ্ধৃতি

Chowdhury, P. N. Economics of Research & Development. People's Pub. House, 1973.