Filipetti, George, author
Richard D. Irwin, 1959
Buku Teks
Alford, Leon Pratt, author
Ronald Press, 1951
Buku Teks
Alford, Leon Pratt, author
Ronald Press, 1940
Buku Teks
Lawrence L. Bethel ... [et al.]
McGraw-Hill, 1945
Buku Teks
by James L. Riggs ... [et al.]
McGraw-Hill, 1979
Buku Teks