APA引文

Vreeland, N., & Maday, B. C. (1977). Area handbook for Singapore. For sale by the Supt. of Docs., U.S. Govt. Print. Off..

Chicago Style (17th ed.) Citation

Vreeland, Nena, and Bela C. Maday. Area Handbook for Singapore. Washington: For sale by the Supt. of Docs., U.S. Govt. Print. Off., 1977.

MLA引文

Vreeland, Nena, and Bela C. Maday. Area Handbook for Singapore. For sale by the Supt. of Docs., U.S. Govt. Print. Off., 1977.