Gaya APA
Wolf, C, D, G, D, P, R.
(2015).
Elementary Surveying
(
14)
.
Inggris:
GLOBAL EDITION.
Gaya MLA
Wolf, Charles, D., Ghilani, Dan, Paul, R..
"Elementary Surveying".
14
Inggris:
GLOBAL EDITION,
2015.
Text.