Dyfyniad APA

(1969). A survey of 20 years of the Council for Mutual Economic Assistance. Moscow: CMEA Secretariat.

Dyfyniad Arddull Chicago

A Survey of 20 Years of the Council for Mutual Economic Assistance. Moscow: CMEA Secretariat, 1969.

Dyfyniad MLA

A Survey of 20 Years of the Council for Mutual Economic Assistance. Moscow: CMEA Secretariat, 1969.

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