Gaya APA
BILLSTEIN, RICK. (2004).
MATHEMATICS FOR ELEMENTARY SCHOOL TEACHERS EIGTH EDITION .
USA:
PEARSON.
Gaya Chicago
BILLSTEIN, RICK.
MATHEMATICS FOR ELEMENTARY SCHOOL TEACHERS EIGTH EDITION.
USA:
PEARSON,
2004.
Text.
Gaya MLA
BILLSTEIN, RICK.
MATHEMATICS FOR ELEMENTARY SCHOOL TEACHERS EIGTH EDITION.
USA:
PEARSON,
2004.
Text.
Gaya Turabian
BILLSTEIN, RICK.
MATHEMATICS FOR ELEMENTARY SCHOOL TEACHERS EIGTH EDITION.
USA:
PEARSON,
2004.
Print.