Cita APA (7a ed.)
Keller, H., & Silverman, R. (2010). How I would help the world. Swedenborg Foundation Press.
Cita Chicago Style (17a ed.)
Keller, Helen, y Ray Silverman. How I Would Help the World. West Chester, Pa.: Swedenborg Foundation Press, 2010.
Cita MLA (9a ed.)
Keller, Helen, y Ray Silverman. How I Would Help the World. Swedenborg Foundation Press, 2010.
Precaución: Estas citas no son 100% exactas.