Cita APA (7a ed.)

Kevin E. Murphy; Mark Higgins. (2019). Concepts in Federal Taxation 2020, 27th Edition (27th edition.). Cengage Learning.

Cita Chicago Style (17a ed.)

Kevin E. Murphy; Mark Higgins. Concepts in Federal Taxation 2020, 27th Edition. 27th edition. United States of America: Cengage Learning, 2019.

Cita MLA (8a ed.)

Kevin E. Murphy; Mark Higgins. Concepts in Federal Taxation 2020, 27th Edition. 27th edition. Cengage Learning, 2019.