[Philippines] 1:250,000 [cartographic material] /

Various eds. Topographic map series of the Philippines showing transportation (including military), communications, boundaries, vegetation and populated places. Relief shown by shading, hachures, contours, spot heights, isolines and soundings.; Includes location index and reliability diagrams, legend and magnetic declination, and insets on some sheets.; Each sheet has a "P.C.G.S." number and place name