TY - BOOK ID - 128519530 TI - Some methodological problems in interpretation of aerial photographs for natural resources surveys AU - Vink, Anthony Paulus Adrianus AU - Boon, D. A. AU - Verstappen, Herman Theodoor AU - International institute for aerial survey and earth sciences (ITC) PY - 1965 PB - Delft : ITC, DB - UniCat UR - https://www.unicat.be/uniCat?func=search&query=sysid:128519530 AB - ER -