ALLEN ROBERT G. (2006). CREATING WEALTH: RETIRE IN TEN YEARS USING ALLEN`S SEVEN PRINCIPLES OF WEALTH. FREE PRESS.
Cita Chicago Style (17a ed.)ALLEN ROBERT G. CREATING WEALTH: RETIRE IN TEN YEARS USING ALLEN`S SEVEN PRINCIPLES OF WEALTH. NEW YORK: FREE PRESS, 2006.
Cita MLA (9a ed.)ALLEN ROBERT G. CREATING WEALTH: RETIRE IN TEN YEARS USING ALLEN`S SEVEN PRINCIPLES OF WEALTH. FREE PRESS, 2006.
Precaución: Estas citas no son 100% exactas.