APA način citiranja (7. izdanje)

HARDWICK,H.C. (2003). WORDS ARE IMPORTANT- BOOK 3 (1st.). WHEELER PUBLISHING.

Čikaški stil citiranja (17. izdanje)

HARDWICK,H.C. WORDS ARE IMPORTANT- BOOK 3. 1st. ALLAHABAD: WHEELER PUBLISHING, 2003.

MLA način citiranja (9. izdanje)

HARDWICK,H.C. WORDS ARE IMPORTANT- BOOK 3. 1st. WHEELER PUBLISHING, 2003.