Gaya APA
Sverdrup, K, A., Armbrust, E, V. (2008).
An introduction to the world's oceans (9).
Boston, Massachusetts:
McGraw-Hill.
Gaya MLA
Sverdrup, Keith, A.., Armbrust, E., Virginia.
"An introduction to the world's oceans".
9
Boston, Massachusetts:
McGraw-Hill,
2008.
Text.