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By "Nelson, Ray, 1893-"
The plant diseases of importance in the transportation of fruits and vegetables, by G.H. Coons, Ph.D., and Ray Nelson, B.S. ...
By: Coons, George Herbert, - Nelson, Ray,
Edition: 1st ed.
Publication info: Chicago,Printed for special distribution by American railway perishable freight association,1918.
Contributed by: Library of Congress
BHL Collections: Library of Congress