Dyfyniad APA

(2000). 50 years of ocean discovery: National science foundation 1950-2000.

Dyfyniad Arddull Chicago

50 Years of Ocean Discovery: National Science Foundation 1950-2000. National Academy Press, Washington, 2000.

Dyfyniad MLA

50 Years of Ocean Discovery: National Science Foundation 1950-2000. 2000.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.