एपीए उद्धरण

Spongberg, A. L. (2006). PCB concentrations in intertidal sipunculan (Phylum Sipuncula) marine worms from the Pacific coast of Costa Rica.

शिकागो स्टाइल उद्धरण

Spongberg, Alison L. PCB Concentrations in Intertidal Sipunculan (Phylum Sipuncula) Marine Worms From the Pacific Coast of Costa Rica. 2006.

एमएलए उद्धरण

Spongberg, Alison L. PCB Concentrations in Intertidal Sipunculan (Phylum Sipuncula) Marine Worms From the Pacific Coast of Costa Rica. 2006.