invited to express their interest in participating to the authors at the address indicated. 
A questionnaire will be mailed to potential cooperators; suggestions are welcome. 
References 
Anderson, J.R. et al. 1976. A land use and land cover classification system for use with 
remote sensor data. Geological Survey Professional Paper 964, U.S. Government 
Printing Office, Washington. 28 p. 
Kalensky, Z. and L.R. Scherk. 1975. Accuracy of forest mapping from LANDSAT 
computer compatible tapes. Paper presented at the Tenth Int. Symp. on Remote 
Sensing of Environment, Ann Arbor, Mich., Oct. 6-10, 1975.