APA ציטוט

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.

ציטוט MLA

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