Παραπομπή APA

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

Παραπομπή Chicago Style

Spongberg, Alison L. PCB Concentrations in Sediments From the Gulf of Nicoya Estuary, Pacific Coast of Costa Rica. 2004.

Παραπομπή MLA

Spongberg, Alison L. PCB Concentrations in Sediments From the Gulf of Nicoya Estuary, Pacific Coast of Costa Rica. 2004.

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