Gaya APA
Clark, Sydney P.. (1971).
Structure of the earth .
Englewood Cliffs, NJ:
Prentice Hall.
Gaya Chicago
Clark, Sydney P..
Structure of the earth.
Englewood Cliffs, NJ:
Prentice Hall,
1971.
Text.
Gaya MLA
Clark, Sydney P..
Structure of the earth.
Englewood Cliffs, NJ:
Prentice Hall,
1971.
Text.
Gaya Turabian
Clark, Sydney P..
Structure of the earth.
Englewood Cliffs, NJ:
Prentice Hall,
1971.
Print.