1. Leucocitemia relativa de los mineros: tésis para el exámen profesional de medicina y cirujia presentada al jurado de calificacion Author(s): Santibañez, Abraham E. Publication: México : Impr. de Villanueva y Villageliú, 1876 Subject(s): LeukemiaMiningOccupational Exposure
2. Lead poisoning (a compilation of present knowledge) Author(s): Hutton, R. M. (Ruth Marjorie), 1892- compiler Publication: Toronto : Clarkson W. James, 1923 Subject(s): Lead PoisoningOccupational ExposureOccupational Health