APA

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

Chicago

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

Harvard

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

MLA

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