APA

Proctor M. L., Alexander-Smith R. & American Bar Association. (1980). Code of professional responsibility by state. [Chicago]: National Center for Professional Responsibility, American Bar Association.

Chicago

Proctor M L, Alexander-Smith Robin and American Bar Association. 1980. Code of professional responsibility by state. [Chicago]: National Center for Professional Responsibility, American Bar Association.

Harvard

Proctor M. L., Alexander-Smith R. and American Bar Association. (1980). Code of professional responsibility by state. [Chicago]: National Center for Professional Responsibility, American Bar Association.

MLA

Proctor M L, Alexander-Smith Robin and American Bar Association. Code of professional responsibility by state. [Chicago]: National Center for Professional Responsibility, American Bar Association. 1980.