APA (7th ed.) Citation

United States. Federal Emergency Management Agency. (1991). Flood insurance study (Revised December 3, 1991.). Federal Emergency Management Agency.

Chicago Style (17th ed.) Citation

United States. Federal Emergency Management Agency. Flood Insurance Study. Revised December 3, 1991. [Washington, D.C.]: Federal Emergency Management Agency, 1991.

MLA (9th ed.) Citation

United States. Federal Emergency Management Agency. Flood Insurance Study. Revised December 3, 1991. Federal Emergency Management Agency, 1991.