Copp, James H. (author), Sill, Maurice L. (author), Brown, Emory J. (author), and Pennsylvania State University, University Park, PA; Pennsylvania State University, University Park, PA; Pennsylvania State University, University Park, PA
Format:
Journal article abstract
Publication Date:
1958-06
Published:
USA
Location:
Agricultural Communications Documentation Center, Funk Library, University of Illinois Box: 4 Document Number: B00429
