International Institute for Aerial Survey and Earth Sciences (ITC)[1979]ITC textbook of photo-interpretation
v. 7 . Use of aerial photographs in geomorphology = Emploi de photographies aériennes en géomorphologie = Aplicación de fotografías aéreas en geomorfología ; ch. 6
by H.Th. Verstappen, R.A. van Zuidam ; with the aid of A.M.J. Meyerink, J.J. Nossin, M. Karmon
International Institute for Aerial Survey and Earth Sciences (ITC)19753rd edITC textbook of photo-interpretation
v. 7 . Use of aerial photographs in geomorphology = Emploi de photographies aériennes en géomorphologie = Aplicación de fotografías aéreas en geomorfología ; ch. 2