APA

Corder P., . (1960). An intermediate english practice book. London: Longmans.

Chicago

Corder Pit, . 1960. An intermediate english practice book. London: Longmans.

Harvard

Corder P., . (1960). An intermediate english practice book. London: Longmans.

MLA

Corder Pit, . An intermediate english practice book. London: Longmans. 1960.