APA
Forster Richard R, . (1973). Planning for Man and Nature in National Parks : Reconcilling Perpetution and Use. SWIZERLAND: IUCN.
Chicago
Forster Richard R, . 1973. Planning for Man and Nature in National Parks : Reconcilling Perpetution and Use. SWIZERLAND: IUCN.
Harvard
Forster Richard R, . (1973). Planning for Man and Nature in National Parks : Reconcilling Perpetution and Use. SWIZERLAND: IUCN.
MLA
Forster Richard R, . Planning for Man and Nature in National Parks : Reconcilling Perpetution and Use. SWIZERLAND: IUCN. 1973.