APA Цитирование

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

Chicago-стиль цитирования

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

MLA-цитирование

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

Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.