Rewoldt, Stewart H.
Homewood: Richard D. Irwin, 1969
Buku Teks
Saltonstall, Robert, author
McGraw-Hill, 1959
Buku Teks
Glover, John Desmond, author
Richard D. Irwin, 1957
Buku Teks
Still, Richard R., author
Prentice-Hall, 1958
Buku Teks
Cruickshank, Henry M., author
Richard D. Irwin, 1958
Buku Teks