APA সাইটেশন

Chowdhury, P. (1973). Economics of research and development. People.

শিকাগো স্টাইলে সাইটেশন

Chowdhury, P.N. Economics of Research and Development. Delhi: People, 1973.

এমএলএ সাইটেশন

Chowdhury, P.N. Economics of Research and Development. People, 1973.