Reid, Constance
Crowell, 1959
Buku Teks
Suvorov, Ierofei Fedorovich, author
Peace, 1963
Buku Teks
Shockley, James E., author
Holt, Rinehart and Winston , 1976
Buku Teks
Armstrong, James W., author
Macmillan, 1976
Buku Teks
Campbell, Hugh G., author
Macmillan, 1974
Buku Teks