Hefley, J. C. (1968). Peril by choice: The story of John and Elaine Beekman, Wycliffe Bible translators in Mexico (Special ed.). School of Tomorrow.
Cita Chicago Style (17a ed.)Hefley, James C. Peril by Choice: The Story of John and Elaine Beekman, Wycliffe Bible Translators in Mexico. Special ed. Lewisville, Texas: School of Tomorrow, 1968.
Cita MLA (8a ed.)Hefley, James C. Peril by Choice: The Story of John and Elaine Beekman, Wycliffe Bible Translators in Mexico. Special ed. School of Tomorrow, 1968.
Precaución: Estas citas no son 100% exactas.