Fisher, R. (1991). Getting to Yes. Randm House Business Books.
Cita Chicago Style (17a ed.)Fisher, Roger. Getting to Yes. London: Randm House Business Books, 1991.
Cita MLA (9a ed.)Fisher, Roger. Getting to Yes. Randm House Business Books, 1991.
Precaución: Estas citas no son 100% exactas.