APA (7th ed.) Citation

Jones, P. R., & Cregan, A. (1986). Signs & symbols: Communication for mentally handicapped people. Croom Helm.

Chicago Style (17th ed.) Citation

Jones, Philip R., and Ailsa Cregan. Signs & Symbols: Communication for Mentally Handicapped People. London ; Dover, N.H.: Croom Helm, 1986.

MLA (9th ed.) Citation

Jones, Philip R., and Ailsa Cregan. Signs & Symbols: Communication for Mentally Handicapped People. Croom Helm, 1986.

Warning: These citations may not always be 100% accurate.