Mississippi Valley conservation report 1970.
Contributors: Ontario. Conservation Authorities Branch.
Published: 1970
Place of publication: [Toronto?
Language: eng
Subjects: Conservation of natural resources -- Ontario -- Mississippi River Valley; Mississippi River Valley (Ont.)
Notes: ERIN lacks v. 2.  "The companion volume, History, gives the background of resource development in the area."  Bibliographical footnotes.
Table of contents: value: v. 1. Report and plan.-v. 2. Appendix.