Gaya APA
BELLO, I., HOPF, F. (2006).
Intermediate Algebra : A Real-World Approach (ed. 2).
New York:
McGraw Hill-Higher Education.
Gaya MLA
BELLO, Ignacio., HOPF, Fran.
"Intermediate Algebra : A Real-World Approach".
ed. 2
New York:
McGraw Hill-Higher Education,
2006.
Text.