APA引文

HASIBUAN, S. R. (1988). English for Specific Purposes: Economics. Gramedia.

Chicago Style (17th ed.) Citation

HASIBUAN, Sofia Rangkuti. English for Specific Purposes: Economics. Gramedia, 1988.

MLA引文

HASIBUAN, Sofia Rangkuti. English for Specific Purposes: Economics. Gramedia, 1988.

警告：這些引文格式不一定是100％准確.