For books:

FORMAT: Author. Title. Place: Publisher, date.

Coasts and Islands. Danbury, CT.: Grolier Educational, 1998.

Polking, Kirk. Oceans of the World. New York: Philomel Books, 1983.

Connor, Judith and Charles Baxter. Kelp Forests. California: Monterey Bay Aquarium, 1989.

For internet resources:  

FORMAT: Author. Title of Database. Date item was written. Online. Web

address, date of access.

Ocean Currents. 1998. Online.

http://www.coe.usouthal.edu/oar/html/ocean_currents.html, September 11, 2000.