Citazione APA

Bertin, L. (1972). new larousse encyclopaedia of the earth (rev. ed.). Hamlyn.

Stile di citazione Chicago

Bertin, Leon. New Larousse Encyclopaedia of the Earth. rev. ed. London: Hamlyn, 1972.

Citazione MLA

Bertin, Leon. New Larousse Encyclopaedia of the Earth. rev. ed. Hamlyn, 1972.