APA (7e ed.) Bronvermelding

Writing effective English: A course in basic English grammar skills and letter writing.

Chicago (17e ed.) Bronvermelding

Writing Effective English: A Course in Basic English Grammar Skills and Letter Writing.

MLA (8e ed.) Bronvermelding

Writing Effective English: A Course in Basic English Grammar Skills and Letter Writing.

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