Gaya APA
Walkenbach. (2000).
Microsoft excel 2000 formulas .
UNITED STATES OF AMERICA:
M&T Books.
Gaya Chicago
Walkenbach.
Microsoft excel 2000 formulas.
UNITED STATES OF AMERICA:
M&T Books,
2000.
Text.
Gaya MLA
Walkenbach.
Microsoft excel 2000 formulas.
UNITED STATES OF AMERICA:
M&T Books,
2000.
Text.
Gaya Turabian
Walkenbach.
Microsoft excel 2000 formulas.
UNITED STATES OF AMERICA:
M&T Books,
2000.
Print.