TY - BOOK ID - 127158179 TI - Topographic instructions of the United States geological survey : photogrammetric rectification : instructions for preparing equivalent vertical prints from tilted aerial negatives : a discussion of the theory of rectification PY - 1961 PB - Washington, D.C.: Government printing office, DB - UniCat UR - https://www.unicat.be/uniCat?func=search&query=sysid:127158179 AB - ER -