Cita APA

Cooke, R., & Cooke, R. (1949). Notes on learning English. London, Sydney: Longmans, Green.

Citación estilo Chicago

Cooke, Ralph, y Ralph Cooke. Notes On Learning English. London, Sydney: Longmans, Green, 1949.

Cita MLA

Cooke, Ralph, y Ralph Cooke. Notes On Learning English. London, Sydney: Longmans, Green, 1949.