APA引文

Port of Singapore Authority. (1992). Singapore port services index. FETP Business Publications.

Chicago Style (17th ed.) Citation

Port of Singapore Authority. Singapore Port Services Index. Singapore: FETP Business Publications, 1992.

MLA引文

Port of Singapore Authority. Singapore Port Services Index. FETP Business Publications, 1992.

警告：这些引文格式不一定是100％准确.