Gaya APA
LEGGET, R, F.
(1962).
LEGGET GEOLOGY AND ENGINEERING
(
SECOND EDITION)
.
Tokyo:
Mc Graw Hill.
Gaya MLA
LEGGET, ROBERT, F..
"LEGGET GEOLOGY AND ENGINEERING".
SECOND EDITION
Tokyo:
Mc Graw Hill,
1962.
Textbook.