1. Informe sobre las putrefacciones y las nitrificaciones de las materias orgánicas super y sub terráneas y sus relaciones con la salud pública Author(s): Wilson, Erastus, author Publication: Habana : Imp. La Prensa, 1893 Subject(s): Ecological and Environmental PhenomenaPublic HealthCuba
2. On the sanitary value of forests Author(s): Andrew, George L., author Publication: Cambridge : Printed at the Riverside Press, 1879 Subject(s): Ecological and Environmental PhenomenaForests