Dyfyniad APA

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

Dyfyniad Arddull Chicago

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

Dyfyniad MLA

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

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.