APA Style
Canals, Sonia. (2000).
Numbers .
:
Letts Educational.
Chicago Style
Canals, Sonia.
Numbers.
:
Letts Educational,
2000.
Text.
MLA Style
Canals, Sonia.
Numbers.
:
Letts Educational,
2000.
Text.
Turabian Style
Canals, Sonia.
Numbers.
:
Letts Educational,
2000.
Print.