TY - BOOK ID - 128252704 TI - Topographic instructions of the United States geological survey. : Color-Separation scribing : Instructions for preparing topographic map manuscripts for multicolor printing by scribing on coated plastic sheets. PY - 1961 PB - Washington : United States government printing office, DB - UniCat KW - Geografie KW - Cartografie KW - Algemeen. UR - https://www.unicat.be/uniCat?func=search&query=sysid:128252704 AB - ER -