APA
H. Hofman W., South Western Federal Taxation, E. Smith J. & Willis E. (2010). Individual Income Taxes 2010 Edition. USA: South Western Cengage Learning.
Chicago
H. Hofman William, South Western Federal Taxation, E. Smith James and Willis Eugene. 2010. Individual Income Taxes 2010 Edition. USA: South Western Cengage Learning.
Harvard
H. Hofman W., South Western Federal Taxation, E. Smith J. and Willis E. (2010). Individual Income Taxes 2010 Edition. USA: South Western Cengage Learning.
MLA
H. Hofman William, South Western Federal Taxation, E. Smith James and Willis Eugene. Individual Income Taxes 2010 Edition. USA: South Western Cengage Learning. 2010.