APA Citatie

Elaine Walker. (1994). Grammar practice for elementary students with answer key. London: Longman.

Chicago Style citaat

Elaine Walker. Grammar Practice for Elementary Students With Answer Key. London: Longman, 1994.

MLA citatie

Elaine Walker. Grammar Practice for Elementary Students With Answer Key. London: Longman, 1994.

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