Satellite snow-cover observations in Arizona, in Proceedings, Fall Technical Meeting of the American Society of Photogrammetry, Alberquerque, N. M., October 1978
Schumann, H.H., 1978, Satellite snow-cover observations in Arizona, in Fall technical meeting of the American Society of Photogrammetry, Alberquerque, New Mexico, October 1978, Proceedings: American Society of Photogrammetry, p. 480-489.