Harrison, John B.
Alfred A. Knopf , 1966
Buku Teks
Houghton Miffiln, 1996
Buku Teks
Harrison, John B.
Alfred A. Knopf, 1969
Buku Teks
edited, Daniel D. Mcgarry, Clarence L. Hohl
Houghton Miffiln, 1963
Buku Teks
Bradley, Carolyn G
Appleton-Century-Crofts , 1954
Buku Teks