Perspectives on concessions selected papers

Sonraí bibleagrafaíochta
Údar corparáideach:	Utah State University
Rannpháirtithe:	Williams, Peter W., Stutman, Randy
Formáid:	LEABHAR
Teanga:	English
Foilsithe / Cruthaithe:	[Logan, Utah] [s.n] [1979?]
Ábhair:	Concessions. National parks and reserves.