APA-ийн эшлэл(7 дахь хэвлэлт)

CHOWDHURI, P. (1973). Economics of research and development. People's Pub.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

CHOWDHURI, P.N. Economics of Research and Development. New Delhi: People's Pub, 1973.

MLA -ийн эшлэл (9 дэх хэвлэлт)

CHOWDHURI, P.N. Economics of Research and Development. People's Pub, 1973.