L. J. Crampon
1953 Colorado statewide summer tourist survey
1960 Colorado travel review
A method of estimating tourists and tourist expenditures in Colorado, 1962
An analysis of tourist markets
An Economic survey of the Pikes Peak region
An evaluation of Pueblo's economic potential
Brush industrial survey
Business in the small cities of Colorado
Case studies of successful Colorado establishments in the visitor industry
Communication information to small businessmen
Englewood industrial survey part one
Englewood industrial survey, ...