एपीए उद्धरण

Spongberg, A. L. (2004). PCB contamination in marine sediments from Golfo Dulce, Pacific coast of Costa Rica.

शिकागो स्टाइल उद्धरण

Spongberg, Alison L. PCB Contamination in Marine Sediments From Golfo Dulce, Pacific Coast of Costa Rica. 2004.

एमएलए उद्धरण

Spongberg, Alison L. PCB Contamination in Marine Sediments From Golfo Dulce, Pacific Coast of Costa Rica. 2004.

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