Cita APA (7a ed.)
Cross, W. (1991). Action Letters for Small Business Owners (1. ed.). Wiley and Sons.
Cita Chicago Style (17a ed.)
Cross, Wilbur. Action Letters for Small Business Owners. 1. ed. New York: Wiley and Sons, 1991.
Cita MLA (9a ed.)
Cross, Wilbur. Action Letters for Small Business Owners. 1. ed. Wiley and Sons, 1991.
Precaución: Estas citas no son 100% exactas.