Reference guide to policy & official statements :
effective April 1981 /
American Medical Association.

APA Citation

American Medical Association. (1981). Reference guide to policy & official statements: effective April 1981. Chicago, IL: AMA, Office of Public Relations.

MLA Citation

American Medical Association. Reference Guide to Policy & Official Statements: Effective April 1981. Chicago, IL: AMA, Office of Public Relations, 1981.

Warning: These citations may not always be complete (especially for serials).