Ray, G. E. (1978). Precision attachments: Theory and practice of the use of ancillary aids in dental prostheses (2a. ed.). Wright.
Chicago Style (17th ed.) CitationRay, G. E. Precision Attachments: Theory and Practice of the Use of Ancillary Aids in Dental Prostheses. 2a. ed. Bristol: Wright, 1978.
MLA (9th ed.) CitationRay, G. E. Precision Attachments: Theory and Practice of the Use of Ancillary Aids in Dental Prostheses. 2a. ed. Wright, 1978.