APA
Spilker B. C., . (2011). Taxation of individuals, 2011 edition. New York: McGraw-Hill Irwin.
Chicago
Spilker Brian C, . 2011. Taxation of individuals, 2011 edition. New York: McGraw-Hill Irwin.
Harvard
Spilker B. C., . (2011). Taxation of individuals, 2011 edition. New York: McGraw-Hill Irwin.
MLA
Spilker Brian C, . Taxation of individuals, 2011 edition. New York: McGraw-Hill Irwin. 2011.