TY  - MAP
ED  - Army Map Service
ED  - Instituto Geográfico Militar
TI  - [Mapa] Sechura
U1  - MP/551/A7S 21
PY  - 1967///
CY  - Lima: 
PB  - Instituto Geográfico Militar
KW  - MAPAS GEOLÓGICOS
KW  - CARTOGRAFÍA
KW  - SECHURA
KW  - PIURA
N1  - "Prepared by the Army Map Service (SX). Corps of Engineers, U.S. Army, Washington, D.C. Compiled in 1967 by photogrammetric methods from aerial photography, dec. 1961. Field classification  1964 by the Instituto Geográfico Militar, Lima-Perú and the Inter-American  Geodetic Survey. Horizontal and vertical control by the Instituto Geográfico Militar, Lima-Perú, and the Inter-American Geodetic Survey."
ER  -