Gaya APA
Klassen, A., Hasbillah, . (2006).
Planning, Location, Survey, Contruction & Maintenance for Low-Impact Forest Roads .
Jakarta:
TFF,ITTO.
Gaya MLA
Klassen, Art., Hasbillah, .
"Planning, Location, Survey, Contruction & Maintenance for Low-Impact Forest Roads".
Jakarta:
TFF,ITTO,
2006.
Text.