APA (7e ed.) Bronvermelding

Duckworth, G. (1972). Read, Think and Choose. Gerald Duckworth.

Chicago (17e ed.) Bronvermelding

Duckworth, Gerald. Read, Think and Choose. Londres, Inglaterra: Gerald Duckworth, 1972.

MLA (9e ed.) Bronvermelding

Duckworth, Gerald. Read, Think and Choose. Gerald Duckworth, 1972.

Let op: Deze citaties zijn niet altijd 100% accuraat.