Hitchcock, A. (1980). Games Killers play. A Dell Book.
Cita Chicago Style (17a ed.)Hitchcock, Alfred. Games Killers Play. New York: A Dell Book, 1980.
Cita MLA (9a ed.)Hitchcock, Alfred. Games Killers Play. A Dell Book, 1980.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.