Forster, R. R. (1973). Planning for man and nature in national parks: Reconciling perpetuation and use. UNESCO.
Cita Chicago Style (17a ed.)Forster, Richard R. Planning for Man and Nature in National Parks: Reconciling Perpetuation and Use. Morges, Suiza: UNESCO, 1973.
Cita MLA (8a ed.)Forster, Richard R. Planning for Man and Nature in National Parks: Reconciling Perpetuation and Use. UNESCO, 1973.
Precaución: Estas citas no son 100% exactas.