Gaya APA
DIXON, D.
(1997).
Macmillan Encyclopedia of Science: The Earth 3
.
Upper Saddle River, NJ:
Sams.
Gaya MLA
DIXON, Dougal.
"Macmillan Encyclopedia of Science: The Earth 3".
Upper Saddle River, NJ:
Sams,
1997.
Text.