Gaya APA
Truett, Lila J., Truett, Dale B.. (1987).
Economics .
Toronto:
Times Mirror .
Gaya Chicago
Truett, Lila J., Truett, Dale B..
Economics.
Toronto:
Times Mirror ,
1987.
Text.
Gaya MLA
Truett, Lila J., Truett, Dale B..
Economics.
Toronto:
Times Mirror ,
1987.
Text.
Gaya Turabian
Truett, Lila J., Truett, Dale B..
Economics.
Toronto:
Times Mirror ,
1987.
Print.