Penna, J. A. (2008). Student's solutions manual: College algebra : Marvin L. Bittinger, David Ellenbogen, Barbara Johnson (3rd edition.). Addison-Wesley.
Citazione stile Chigago Style (17a edizione)Penna, Judith A. Student's Solutions Manual: College Algebra : Marvin L. Bittinger, David Ellenbogen, Barbara Johnson. 3rd edition. Boston, Mass: Addison-Wesley, 2008.
Citatione MLA (9a ed.)Penna, Judith A. Student's Solutions Manual: College Algebra : Marvin L. Bittinger, David Ellenbogen, Barbara Johnson. 3rd edition. Addison-Wesley, 2008.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.