APA引文

Ng, S. F. (1987). Returns to investment in education in Singapore.

Chicago Style (17th ed.) Citation

Ng, Siew Fong. Returns to Investment in Education in Singapore. 1987.

MLA引文

Ng, Siew Fong. Returns to Investment in Education in Singapore. 1987.

警告：这些引文格式不一定是100％准确.