Cita APA (7a ed.)
Cotera Herrera, G. Great Scientific and Tecnological Discoveries of the Twentieth Century. McGraw-Hill.
Cita estilo Chicago (17a ed.)
Cotera Herrera, Guillermo. Great Scientific and Tecnological Discoveries of the Twentieth Century. Nueva York, EUA: McGraw-Hill.
Cita MLA (9a ed.)
Cotera Herrera, Guillermo. Great Scientific and Tecnological Discoveries of the Twentieth Century. McGraw-Hill.
Precaución: Estas citas no son 100% exactas.