Hickok, Eugene W.; Sedgwick, Jeffrey L.; Greenawalt, Charles E.; Madonna, Terry G.; Jeffe, Sherry Bebitch University Press of America 1992 Kovakantinen kirja
Hickok, Eugene W.; Sedgwick, Jeffrey L.; Greenawalt, Charles E.; Madonna, Terry G.; Jeffe, Sherry Bebitch University Press of America 1992 Pehmeäkantinen kirja