APA (7e ed.) Bronvermelding
Eastwood, J. (1999). Oxford practice grammar: With answers (2nd ed.). Oxford University.
Chicago (17e ed.) Bronvermelding
Eastwood, John. Oxford Practice Grammar: With Answers. 2nd ed. New York: Oxford University, 1999.
MLA (9e ed.) Bronvermelding
Eastwood, John. Oxford Practice Grammar: With Answers. 2nd ed. Oxford University, 1999.
Let op: Deze citaties zijn niet altijd 100% accuraat.