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