C. R. Humphrys

Evapotranspiration bibliography

Water ideas for busy teachers

Julius, the raindrop, goes to school

Water resource analysis of Berrien County, Michigan

Preliminary inventory of Michigan's artificial surface water

Policy and recommendations for artificial ponds in Michigan

Water resource analysis of Genesee County, Michigan

The resource of the future

Lecture synopses and selected readings for conservation of natural resources

Classifications for Michigan's inland lakes

Water rights in Michigan

Mineral rights