APA (7e ed.) Bronvermelding

HARDWICK, H. (2003). WORDS ARE IMPORTANT- BOOK 4 (1st.). WHEELER PUBLISHING.

Chicago (17e ed.) Bronvermelding

HARDWICK, H.C. WORDS ARE IMPORTANT- BOOK 4. 1st. ALLAHABAD: WHEELER PUBLISHING, 2003.

MLA (9e ed.) Bronvermelding

HARDWICK, H.C. WORDS ARE IMPORTANT- BOOK 4. 1st. WHEELER PUBLISHING, 2003.