Paul G. Risser

titleISBN-13
(ISBN-10)
year of publication
Man and the Biosphere: U.S. Information Synthesis Project, Mab-8 Biosphere Reserves978-O-8O61-161O-5
(O-8O61-161O-2)
1980

P.G. · P R · Paul G. · Paul R.

Paul G Roberts