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Practical crop protection
How a tree grows : leaves, crown, trunk, roots
National list of scientific plant names
Some records of grassland farming in Wisconsin and Minnesota
Health and vigor : competition and production
Grass in conservation in the United States
The farm woodland : subject material for in-service training
Duck and pheasant use of water bank program agreement areas in east-central South Dakota
Calculated yields from young-growth ponderosa pine management
Farm woodland management in the western Gulf region