APA (7th ed.) Citation

United States. Immigration and Naturalization Service. (1992). Naturalization requirements and general information. The Service.

Chicago Style (17th ed.) Citation

United States. Immigration and Naturalization Service. Naturalization Requirements and General Information. [Washington, D.C.?]: The Service, 1992.

MLA (9th ed.) Citation

United States. Immigration and Naturalization Service. Naturalization Requirements and General Information. The Service, 1992.

Warning: These citations may not always be 100% accurate.