Directory of Medical Specialists. - 16th ed. - Chicago : Marquis Who`s Who Inc., 1970 -. - Volume ; 30 cm. Vol. 1 (1974-1975, xx, 1478 p.) Vol. 2 (1974-1975, xxxii, 1481-3118 p.) ISBN: 0-8379-0516-8 Subjects--Topical Terms: Medicine--Dictionaries