Dyfyniad APA

Foster, P. W. (1967). Research on agricultural development in North-Africa. New york.

Dyfyniad Arddull Chicago

Foster, Philip W. Research on Agricultural Development in North-Africa. Agricultural development council,inc: New york, 1967.

Dyfyniad MLA

Foster, Philip W. Research on Agricultural Development in North-Africa. New york, 1967.

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