Gaya APA
Kerr, Donald R.. (1980).
Elementary algebra .
Singapore:
McGraw-Hill.
Gaya Chicago
Kerr, Donald R..
Elementary algebra.
Singapore:
McGraw-Hill,
1980.
Text.
Gaya MLA
Kerr, Donald R..
Elementary algebra.
Singapore:
McGraw-Hill,
1980.
Text.
Gaya Turabian
Kerr, Donald R..
Elementary algebra.
Singapore:
McGraw-Hill,
1980.
Print.