Author
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Pennsylvania State College. School of Agriculture
1
Phipps, Joseph, 1708-1787
1
Price, George M. 1864-1942
1
Reed, Joseph
1
Rhoads, Carroll Brewster, 1892-
1
Rogers, Colin Darlington
1
Segel, J. D.
1
Tennent, Gilbert, 1703-1764
1
Thomas Jefferson Library Collection (Library of Congress)
1
United States. Public Health Service
1
University of the State of New York State Education Dept Division of Educational Testing
1
Wood, Ben D. 1894-1986
1