APA aipamena

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

Chicago Style aipamena

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

MLA aipamena

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