APA引文

National Book Development Council of Singapore. (1981). First national readership survey. National Book Development Council of Singapore.

Chicago Style (17th ed.) Citation

National Book Development Council of Singapore. First National Readership Survey. [Singapore]: National Book Development Council of Singapore, 1981.

MLA引文

National Book Development Council of Singapore. First National Readership Survey. National Book Development Council of Singapore, 1981.

警告：这些引文格式不一定是100％准确.