APA (7e ed.) Bronvermelding

CAMPBELL, M. (1989). Satu, dua, tiga [1-2-3] Release 3: The Complete Reference/mary Campbell. Osborne McGraw-Hill.

Chicago (17e ed.) Bronvermelding

CAMPBELL, Mary. Satu, Dua, Tiga [1-2-3] Release 3: The Complete Reference/mary Campbell. Osborne McGraw-Hill, 1989.

MLA (8e ed.) Bronvermelding

CAMPBELL, Mary. Satu, Dua, Tiga [1-2-3] Release 3: The Complete Reference/mary Campbell. Osborne McGraw-Hill, 1989.