APA
Libby P., . (2009). Principles of accounting. New York: McGraw-Hill/Irwin.
Chicago
Libby Patricia, . 2009. Principles of accounting. New York: McGraw-Hill/Irwin.
Harvard
Libby P., . (2009). Principles of accounting. New York: McGraw-Hill/Irwin.
MLA
Libby Patricia, . Principles of accounting. New York: McGraw-Hill/Irwin. 2009.