Yale-New Haven Hospital.
Centrex telephone directory.
New Haven, Conn. : Office of Public Relations Yale-New Haven Hospital, 1969-1977.
Cover title.
Includes telephone numbers which are extensions installed in the Medical Center and University areas.
For later directories, please see: Yale-New Haven Medical Center telephone directory.
Yale University. School of Medicine.
Yale University -- Telephone directories.
Philadelphia Area Center for History of Science
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