APA Style
Pettofrezzo, Anthony J., Hight, Donald W.. (1969).
Elementary Mathematics: Number Systems .
United States of America:
Scott, Foresman and Company.
Chicago Style
Pettofrezzo, Anthony J., Hight, Donald W..
Elementary Mathematics: Number Systems.
United States of America:
Scott, Foresman and Company,
1969.
Text.
MLA Style
Pettofrezzo, Anthony J., Hight, Donald W..
Elementary Mathematics: Number Systems.
United States of America:
Scott, Foresman and Company,
1969.
Text.
Turabian Style
Pettofrezzo, Anthony J., Hight, Donald W..
Elementary Mathematics: Number Systems.
United States of America:
Scott, Foresman and Company,
1969.
Print.