I cannot for the life of me find the exact date -- day, month, year -- for the original DSM-III publication. The Google Citation, Amazon info, APA page, and others only list 1980. Does anyone know? Thanks.
At this present moment I cannot find full date information, but looking at a copy of the DSM-III I have found, on the bottom of the 3rd page of the PDF it points out:
First Printing, February 1980
Second Printing, May 1980