Gaya APA
immergut,brita, . et al (2001).
How to help your child excel in math : an A to Z survival guide .
canada - america:
book mart press.
Gaya MLA
immergut,brita, . et al.
"How to help your child excel in math : an A to Z survival guide".
canada - america:
book mart press,
2001.
Text.