Gaya APA
Spencer, Donald D.. (1982).
Data processing an introduction (text).
Colombus:
A Bell & Howell Company.
Gaya Chicago
Spencer, Donald D..
Data processing an introduction.
text
Colombus:
A Bell & Howell Company,
1982.
Tesis.
Gaya MLA
Spencer, Donald D..
Data processing an introduction.
text
Colombus:
A Bell & Howell Company,
1982.
Tesis.
Gaya Turabian
Spencer, Donald D..
Data processing an introduction.
text
Colombus:
A Bell & Howell Company,
1982.
Tesis.