Citazione APA

Francis, H. (1979). Who's who in world agriculture. V.2. Longman group Ltd.

Stile di citazione Chicago

Francis, Hodgson. Who's Who in World Agriculture. V.2. U K: Longman group Ltd, 1979.

Citazione MLA

Francis, Hodgson. Who's Who in World Agriculture. V.2. Longman group Ltd, 1979.