APA引文

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

Citación estilo Chicago

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

MLA引文

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

警告：這些引文格式不一定是100％准確.