edited by Allan Nevins and Louis M. Hacker
D.C. Heath, 1943
Buku Teks
Stebbins, Richard P., author
Harper & Row, 1963
Buku Teks
Parks, Wallace Judson, author
Johns Hopkins Press, 1951
Buku Teks
Stebbins, Richard P., editor
Harper & Brothers, 1955
Buku Teks
Stebbins, Richard P., editor
Harper & Brothers, 1960
Buku Teks