APA引文

Eko, E. E. (1999). Effective writing. Heinemann Educational Books.

Chicago Style (17th ed.) Citation

Eko, Ebele E. Effective Writing. Heinemann Educational Books, 1999.

MLA引文

Eko, Ebele E. Effective Writing. Heinemann Educational Books, 1999.

警告：這些引文格式不一定是100％准確.