Gaya APA
HARRIS, Walter A.. (1970).
INTRODUCTORY ECONOMICS .
:
.
Gaya Chicago
HARRIS, Walter A..
INTRODUCTORY ECONOMICS.
:
,
1970.
Text.
Gaya MLA
HARRIS, Walter A..
INTRODUCTORY ECONOMICS.
:
,
1970.
Text.
Gaya Turabian
HARRIS, Walter A..
INTRODUCTORY ECONOMICS.
:
,
1970.
Print.