Dyfyniad APA

Ojha,, . H. (1991). Origin of achievement motivation. Classical Publishing Co..

Dyfyniad Arddull Chicago

Ojha,, Hardeo. Origin of Achievement Motivation. New Delhi: Classical Publishing Co., 1991.

Dyfyniad MLA

Ojha,, Hardeo. Origin of Achievement Motivation. Classical Publishing Co., 1991.

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