Gaya APA
Draenage principles and applications. (1973).
New York:
International Institud For Land.
Gaya Chicago
Draenage principles and applications.
.
New York:
International Institud For Land,
1973.
.
Gaya MLA
Draenage principles and applications.
.
New York:
International Institud For Land,
1973.
.
Gaya Turabian
Draenage principles and applications.
New York:
International Institud For Land,
1973.
.