Special libraries directory,
ed. by Dorsey W. Hyde, jr.
APA Citation
Hyde, D. William., Special Libraries Association. (1921). Special libraries directory. Washington, D.C.: Special libraries association.
MLA Citation
Hyde, Dorsey William, 1888-1955, and Special Libraries Association. Special Libraries Directory. Washington, D.C.: Special libraries association, 1921.
Warning: These citations may not always be complete (especially for serials).