APA引文

Port of Singapore Authority. (1995). Singapore maritime directory. Times Trade Directories Pte. Ltd..

Chicago Style (17th ed.) Citation

Port of Singapore Authority. Singapore Maritime Directory. Singapore: Times Trade Directories Pte. Ltd., 1995.

MLA引文

Port of Singapore Authority. Singapore Maritime Directory. Times Trade Directories Pte. Ltd., 1995.

警告：这些引文格式不一定是100％准确.