Carmichael D. R., Willingham J. J., . (1971). Auditing concepts and methods. New York: McGraw Hill.
Carmichael D R, Willingham John J, . 1971. Auditing concepts and methods. New York: McGraw Hill.
Carmichael D R, Willingham John J, . Auditing concepts and methods. New York: McGraw Hill. 1971.