APA (7th ed.) Citation

Krouse, W. J., & Wasem, R. E. (1998). Immigration: Visa entry/exit control system. Congressional Research Service, Library of Congress.

Chicago Style (17th ed.) Citation

Krouse, William J., and Ruth Ellen Wasem. Immigration: Visa Entry/exit Control System. [Washington, D.C.]: Congressional Research Service, Library of Congress, 1998.

MLA (9th ed.) Citation

Krouse, William J., and Ruth Ellen Wasem. Immigration: Visa Entry/exit Control System. Congressional Research Service, Library of Congress, 1998.