Natural resource management of water and land.
GANGSTAD, Edward O.
Natural resource management of water and land. - New York : Van Nostrand Reinhold, 1990. - x, 192 p. : ill. ; 20 cm.
natural resource management - north america.
Natural resource management of water and land. - New York : Van Nostrand Reinhold, 1990. - x, 192 p. : ill. ; 20 cm.
natural resource management - north america.