Author
Bailey, L. H.
15
Warren, G. F.
2
Buckman, Harry O.
1
Carleton, Mark Alfred
1
Duggar, John Frederick
1
Fippin, Elmer O.
1
Gourley, J. H.
1
Guthrie, Edward Sewall
1
Harris, Franklin S.
1
Hitchcock, A. S.
1
Jordan, Whitman Howard
1
Lyon, T. Lyttleton
1
Meyvecilik
1
Morgan, James Oscar
1
Piper, Charles V.
1
Smith, J. Warren
1
Stewart, George
1
White, Edward A.
1
Widtsoe, John A.
1