Gaya APA
Spener, D, E.
(1993).
Study guide Parkin microeconomic
(
2nd Ed)
.
United State of America:
Addison Wesley Pub.
Gaya MLA
Spener, David, E.
"Study guide Parkin microeconomic".
2nd Ed
United State of America:
Addison Wesley Pub,
1993.
Text.