Proceedings Of The Forty-Ninth Annual Convention Of The American Railway Engineering Association, Vol. 51: Held At The Palmer House, Chicago, Illinois, March 14, 15, And 16, 1950 (Classic Reprint)
Ripresa Nazionale, Anno 3, N° 5-6, Maggio-Giugno 1950 (Incompleto) (Indice: La Repubblica Di S. Marino Nel Suo 1650° Annuale. Giustizia E Libertà, Luigi Gasparotio. Rinascita. San Marino Nelle(...)
Fifty Books Of The Year 1949: 1950 Exhibition. 28th Annual Exhibition Opening April 4, 1950 In Boston, Chicago, New York, Philadelphia, San Francisco, And Washington
Relation Of Psychological Tests To Psychiatry, Proceedings Of The Forthieth Annual Meeting Of The American Psychopathological Association, New York City, June, 1950