Dyfyniad APA

(1988). Bibliography of Doctoral Dissertations: Natural and Applied Sciences 1989. Association of Indian Universities.

Dyfyniad Arddull Chicago

Bibliography of Doctoral Dissertations: Natural and Applied Sciences 1989. New Delhi: Association of Indian Universities, 1988.

Dyfyniad MLA

Bibliography of Doctoral Dissertations: Natural and Applied Sciences 1989. Association of Indian Universities, 1988.

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