51. Cronología del periodismo ecuatoriano: Pseudonimos de la prensa nacional Author(s): Rolando, Carlos A., 1881-1974 compiler Publication: Guayaquil : Imp. Monteverde & Velarde, 1920 Subject(s): Anonyms and PseudonymsPeriodicals as TopicEcuador
52. Investigations regarding health in industry, Syracuse, New York: report made through the State Committee on Tuberculosis and Public Health of the State Charities Aid Association of New York to the health agencies participating in the Syracuse Health and Tuberculosis Demonstration Author(s): Wright, Wade, 1889- authorCrowell, Florence, author Publication: Syracuse, N.Y. : Department of Health, [1924?] Subject(s): Occupational Health ServicesOccupational MedicineNew York