Dyfyniad APA

Abdullah, M., & Zafar, M. A. (1973). Cotton handbook of Pakistan. Pakistan Central Cotton Committee.

Dyfyniad Arddull Chicago

Abdullah, M., and M. Azam Zafar. Cotton Handbook of Pakistan. Karachi: Pakistan Central Cotton Committee, 1973.

Dyfyniad MLA

Abdullah, M., and M. Azam Zafar. Cotton Handbook of Pakistan. Pakistan Central Cotton Committee, 1973.

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