Delwedd Flaen

Conservation of water and related land resources

Manylion Llyfryddiaeth
Prif Awdur: Black, Peter E.
Fformat: Llyfr
Iaith:Saesneg
Cyhoeddwyd: Boca Raton, Fla. Lewis Publishers c2001.
Rhifyn:3rd ed.
Pynciau:
Water conservation > Government policy > United States.
Land use > Government policy > United States.