Cita APA (7a ed.)
Barnes, W. S. World Tax Series. Harvard University, Law School : Little, Brown and Company.
Cita estilo Chicago (17a ed.)
Barnes, William Sprague. World Tax Series. Boston, EUA: Harvard University, Law School : Little, Brown and Company.
Cita MLA (9a ed.)
Barnes, William Sprague. World Tax Series. Harvard University, Law School : Little, Brown and Company.
Precaución: Estas citas no son 100% exactas.