• 3 Steenbock Library

• 2 Study and teaching
• 2 University of Wisconsin--Madison. College of Agricultural and Life Sciences
• 2 University of Wisconsin. College of Agriculture
• 1 Economic aspects
• 1 Farm tractors
• 1 Internal combustion engines
• 1 Life sciences
• 1 Research

• 2 University of Wisconsin--Madison. Archives
• 2 University of Wisconsin. College of Agriculture
• 1 University of Wisconsin--Extension. Cooperative Extension Service
• 1 University of Wisconsin--Madison. Department of Agricultural Economics

• 5 English

• 2 Wisconsin

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