Cita APA (7th ed.)

D'Angelo, R. N., & Douglas, H. (2009). Taking sides (7th edition.). McGraw-Hill Higher Education.

Cita Chicago (17th ed.)

D'Angelo, Raymond N., i Herbert Douglas. Taking Sides. 7th edition. Boston: McGraw-Hill Higher Education, 2009.

Cita MLA (9th ed.)

D'Angelo, Raymond N., i Herbert Douglas. Taking Sides. 7th edition. McGraw-Hill Higher Education, 2009.