APA

Whittington O., Pany K., . (2001). Principles of Auditing and Other Assurance Services. Boston: Irwin/McGraw-Hill.

Chicago

Whittington O.R, Pany K, . 2001. Principles of Auditing and Other Assurance Services. Boston: Irwin/McGraw-Hill.

Harvard

Whittington O., Pany K., . (2001). Principles of Auditing and Other Assurance Services. Boston: Irwin/McGraw-Hill.

MLA

Whittington O.R, Pany K, . Principles of Auditing and Other Assurance Services. Boston: Irwin/McGraw-Hill. 2001.