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Public recreation administration
Reynolds, Jesse A., (1976)
Outdoor recreation : advances in application of economics ; proceedings
Hughes, Jay M., (1977)
The costs of congestion. An econometric analysis of wilderness recreation
Cicchetti, Charles Joseph, (1976)
Urban recreation planning : A selected bibl.
Gold, Seymour M., (1979)
Environmental studies : an educational prospectus
Gold, Seymour M., (1972)
A glossary for environmental studies (a proposal)