APA (7th ed.) Citation

Spongberg, A. L. (2004, December). PCB concentrations in sediments from the Gulf of Nicoya estuary, Pacific coast of Costa Rica. Revista de Biología Tropical.

Chicago Style (17th ed.) Citation

Spongberg, Alison L. "PCB Concentrations in Sediments from the Gulf of Nicoya Estuary, Pacific Coast of Costa Rica." Revista De Biología Tropical Dec. 2004.

MLA (9th ed.) Citation

Spongberg, Alison L. "PCB Concentrations in Sediments from the Gulf of Nicoya Estuary, Pacific Coast of Costa Rica." Revista De Biología Tropical, Dec. 2004.

Warning: These citations may not always be 100% accurate.