Gaya APA
Barnett, R, A. et al
(2001).
Precalculus Functions and Graphs
(
Ed. 1)
.
los Angeles:
The Mc Graw Hill.
Gaya MLA
Barnett, Raymond, A. et al.
"Precalculus Functions and Graphs".
Ed. 1
los Angeles:
The Mc Graw Hill,
2001.
Text.