Gaya APA
Leet, L. Don. (1960).
Physical geology .
:
Prentice-Hall, Inc..
Gaya Chicago
Leet, L. Don.
Physical geology.
:
Prentice-Hall, Inc.,
1960.
Text.
Gaya MLA
Leet, L. Don.
Physical geology.
:
Prentice-Hall, Inc.,
1960.
Text.
Gaya Turabian
Leet, L. Don.
Physical geology.
:
Prentice-Hall, Inc.,
1960.
Print.