Clayton, N. (1997). Young living (Seventh edition.). Glencoe/McGraw-Hill.
Cita Chicago Style (17a ed.)Clayton, Nanalee. Young Living. Seventh edition. New York: Glencoe/McGraw-Hill, 1997.
Cita MLA (8a ed.)Clayton, Nanalee. Young Living. Seventh edition. Glencoe/McGraw-Hill, 1997.
Precaución: Estas citas no son 100% exactas.