Lewis, J. P., & Spirin, G. (1994). The frog princess: A Russian folktale. Dial Books.
Cita Chicago Style (17a ed.)Lewis, J. Patrick, y Gennady Spirin. The Frog Princess: A Russian Folktale. New York: Dial Books, 1994.
Cita MLA (8a ed.)Lewis, J. Patrick, y Gennady Spirin. The Frog Princess: A Russian Folktale. Dial Books, 1994.
Precaución: Estas citas no son 100% exactas.