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close this section of the libraryPierson, Charles F., 1920- 4n(1)
View the documentPierson, Charles F., 1920- 4n; Market diseases of apples, pears, and quinces / by Charles F. Pierson, Michael J. Ceponis, and Lacy P. McColloch, collaborator. Washington, D.C. : Agricultural Research Service, U.S. Dept. of Agriculture, 1971.