Conservation on your own
Subtitle: how to lay out contour lines and use field  borders
Contributors: United States. Soil Conservation Service
Publisher: USDA Soil Conservation Service
Published: 1990
Place of publication: St. Paul, Minn
Language: eng
Subjects: Soil conservation -- United States
Other titles: How to lay out contour lines and use field borders
Notes: Caption title

Shipping list no.: 90-0316-P

At head of title: "How to."