TY  - BOOK
AU  - Gallardo, Ronaldo S.
TI  - Field manual in plane surveying.
PY  - 1986///
CY  - Manila
PB  - Research Center, De La Salle University
KW  - Surveying
KW  - sears
N1  - Instructional material for DLSU use only. Mimeographed
ER  -