Dyfyniad APA

(1973). WORLD ARGRICULTURAL ECONOMICS AND RURAL SOCIOLOGY ABSTRACTS. COMMON AGRICULTURAL BUREAUX.

Dyfyniad Arddull Chicago

WORLD ARGRICULTURAL ECONOMICS AND RURAL SOCIOLOGY ABSTRACTS. ENGLAND: COMMON AGRICULTURAL BUREAUX, 1973.

Dyfyniad MLA

WORLD ARGRICULTURAL ECONOMICS AND RURAL SOCIOLOGY ABSTRACTS. COMMON AGRICULTURAL BUREAUX, 1973.

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