APA (7th ed.) Citation

Geological Survey. (2010). La Grulla quadrangle, Texas--Tamaulipas: 7.5- minute series. U.S. Dept. of the Interior, U.S. Geological Survey.

Chicago Style (17th ed.) Citation

Geological Survey. La Grulla Quadrangle, Texas--Tamaulipas: 7.5- Minute Series. [Reston, VA]: U.S. Dept. of the Interior, U.S. Geological Survey, 2010.

MLA (8th ed.) Citation

Geological Survey. La Grulla Quadrangle, Texas--Tamaulipas: 7.5- Minute Series. U.S. Dept. of the Interior, U.S. Geological Survey, 2010.