Ralph W Hansen

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1) Methane generation from livestock wastes

Author

Hansen, Ralph W

Series

Farm and ranch series. Equipment volume no. 5.002

Pub. Date

[2003]

2) Building insulation for comfort and energy conservation

Author

Hansen, Ralph W

Series

Service in action volume no. 4.651

Pub. Date

1980.

3) Motor oils: classifications and service

Author

Hansen, Ralph W

Series

Service in action volume no. 5.001

Pub. Date

1983.

4) On-site water supply and wastewater disposal: quality maintenance of the water cycle

Author

Series

Service in action volume no. 4.662

Pub. Date

1979.

5) Septic tank systems: problems and promises

Author

Series

Service in action volume no. 4.661

Pub. Date

1979.

6) Large tractor operation: fallacies and facts

Author

Downs, H. Willard

Series

Farm and ranch series. Equipment volume no. 5.005

Pub. Date

2005.

7) Selecting energy-efficient tractors

Author

Downs, H. Willard

Series

Farm and ranch series. Equipment volume no. 5.007

Pub. Date

2005.

8) Operation of septic tank systems

Author

Series

Service in action volume no. 4.663

Pub. Date

1979.

9) Septic tank installation and construction

Author

Series

Service in action volume no. 4.665

Pub. Date

1979.

10) Non-soil dispersal sewage systems

Author

Series

Service in action volume no. 4.664

Pub. Date

[1979]

11) Estimating farming fuel requirements

Author

Downs, H. Willard

Series

Farm and ranch series. Equipment volume no. 5.006

Pub. Date

1998.

12) Wastewater management alternatives for small Colorado communities

Author

Series

Bulletin volume 512A

Pub. Date

1982.