APA (7e ed.) Bronvermelding

Jeffrey, R. (2016). About Writing: A Guide. Open Oregon Educational Resources.

Chicago (17e ed.) Bronvermelding

Jeffrey, Robin. About Writing: A Guide. [Place of publication not identified]: Open Oregon Educational Resources, 2016.

MLA (9e ed.) Bronvermelding

Jeffrey, Robin. About Writing: A Guide. Open Oregon Educational Resources, 2016.