Gaya APA

Hutt, M, L., Gibby, R, G. (1979). The Mentally Retarded Child : Development, Training, and Education (Ed. 4). Boston: Allyn And Bacon, Inc..

Gaya MLA

Hutt, Max, L.., Gibby, Robert, Gwyn. "The Mentally Retarded Child : Development, Training, and Education". Ed. 4 Boston: Allyn And Bacon, Inc., 1979. Text.