Gaya APA
Billings, Marland P.. (1954).
Structural Geology (Second Ed.).
New Jersey:
Prentice-Hall, Inc..
Gaya Chicago
Billings, Marland P..
Structural Geology.
Second Ed.
New Jersey:
Prentice-Hall, Inc.,
1954.
Book.
Gaya MLA
Billings, Marland P..
Structural Geology.
Second Ed.
New Jersey:
Prentice-Hall, Inc.,
1954.
Book.
Gaya Turabian
Billings, Marland P..
Structural Geology.
Second Ed.
New Jersey:
Prentice-Hall, Inc.,
1954.
Book.