Gaya APA
Plummer, C, C., Carlson, D, H.
(2008).
Physicals Geology
(
Ed. 12)
.
:
Mc Graw Hill.
Gaya MLA
Plummer, Charles, C.., Carlson, Diane, H..
"Physicals Geology".
Ed. 12
:
Mc Graw Hill,
2008.
Text.