APA (7th ed.) Citation

Geological Survey (U.S.), Puerto Rico. Department of Natural Resources, Pilkey, O. H., Bush, D. M., & Rodríguez, R. W. (1987). Bottom sediment types of the northern insular shelf of Puerto Rico; Punta Peñón to Punta Salinas. The Survey.

Chicago Style (17th ed.) Citation

Geological Survey (U.S.), Puerto Rico. Department of Natural Resources, Orrin H. Pilkey, David M. Bush, and Rafael W. Rodríguez. Bottom Sediment Types of the Northern Insular Shelf of Puerto Rico; Punta Peñón to Punta Salinas. Reston, Va.: The Survey, 1987.

MLA (9th ed.) Citation

Geological Survey (U.S.), et al. Bottom Sediment Types of the Northern Insular Shelf of Puerto Rico; Punta Peñón to Punta Salinas. The Survey, 1987.