Mrs. Elton J. Hansens books & textbook
Aquatic Vegetation of New Jersey: Ecology and Identification / Problems and Methods of Control (Extension Service Bulletin No. 382)
David E. Fairbrothers Edwin T. Moul Alban R. Essbach Donald N. Riemer Donald A. Schallock Mrs. Elton J. Hansens Various Contributors
Rutgers Univ., College of Agriculture /1965T Paperback / 107 Pages
