Whittington, O. R. (2015). Wiley CPA excel exam review study guide 2015: Regulation. John Wiley & Sons.
Citazione stile Chigago Style (17a edizione)Whittington, O. Ray. Wiley CPA Excel Exam Review Study Guide 2015: Regulation. Hoboken, New Jersey: John Wiley & Sons, 2015.
Citatione MLA (9a ed.)Whittington, O. Ray. Wiley CPA Excel Exam Review Study Guide 2015: Regulation. John Wiley & Sons, 2015.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.