APA引文

Singapore. Dept. of Statistics. (1980). Singapore standard occupational classification, 1978. Dept. of Statistics.

Chicago Style (17th ed.) Citation

Singapore. Dept. of Statistics. Singapore Standard Occupational Classification, 1978. Singapore: Dept. of Statistics, 1980.

MLA引文

Singapore. Dept. of Statistics. Singapore Standard Occupational Classification, 1978. Dept. of Statistics, 1980.

警告：這些引文格式不一定是100％准確.