Zimmerman, O. T., & Lavine, I. (1948). Scientific and technical abbreviations, signs and symbols (2nd ed.). Industrial Research Service.
Cita Chicago Style (17a ed.)Zimmerman, O. T., y Irvin Lavine. Scientific and Technical Abbreviations, Signs and Symbols. 2nd ed. Dover: Industrial Research Service, 1948.
Cita MLA (9a ed.)Zimmerman, O. T., y Irvin Lavine. Scientific and Technical Abbreviations, Signs and Symbols. 2nd ed. Industrial Research Service, 1948.
Precaución: Estas citas no son 100% exactas.