APA

Renken R. A., . (2002). Geology and hydrogeology of the Caribbean islands aquifer system of the Commonwealth of Puerto Rico and the U.S. Virgin Islands. Reston, Va: U.S. Dept. of the Interior, U.S. Geological Survey.

Chicago

Renken Robert A, . 2002. Geology and hydrogeology of the Caribbean islands aquifer system of the Commonwealth of Puerto Rico and the U.S. Virgin Islands. Reston, Va: U.S. Dept. of the Interior, U.S. Geological Survey.

Harvard

Renken R. A., . (2002). Geology and hydrogeology of the Caribbean islands aquifer system of the Commonwealth of Puerto Rico and the U.S. Virgin Islands. Reston, Va: U.S. Dept. of the Interior, U.S. Geological Survey.

MLA

Renken Robert A, . Geology and hydrogeology of the Caribbean islands aquifer system of the Commonwealth of Puerto Rico and the U.S. Virgin Islands. Reston, Va: U.S. Dept. of the Interior, U.S. Geological Survey. 2002.