From conservation to ecology the development of environmental concern

From conservation to ecology the development of environmental concern

Bibliografiset tiedot
Päätekijä: Pursell, Carroll W.
Aineistotyyppi: Kirja
Kieli:English
Julkaistu: New York Crowell 1973.
Sarja:Problem studies in American history
Aiheet:
Environmental policy > United States.
Ecology > United States.
Natural resources > United States.