Dyfyniad APA

Abdelkader Benamara; Ed & Ifeagwu, S. E. (1987). OPEC aid and the challenge of development.

Dyfyniad Arddull Chicago

Abdelkader Benamara; Ed and Sam; Ed Ifeagwu. OPEC Aid and the Challenge of Development. London, Croom Helm, 1987.

Dyfyniad MLA

Abdelkader Benamara; Ed and Sam; Ed Ifeagwu. OPEC Aid and the Challenge of Development. 1987.

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