Gaya APA
Perlick, Walter. (1981).
Programed learning aid for introduction to business, 3rd ed. .
New York:
Irwin.
Gaya Chicago
Perlick, Walter.
Programed learning aid for introduction to business, 3rd ed..
New York:
Irwin,
1981.
Text.
Gaya MLA
Perlick, Walter.
Programed learning aid for introduction to business, 3rd ed..
New York:
Irwin,
1981.
Text.
Gaya Turabian
Perlick, Walter.
Programed learning aid for introduction to business, 3rd ed..
New York:
Irwin,
1981.
Print.