Gaya APA
G., G.
(1981).
The Dow Jones-Irwin Guide To Commodities Trading
(
2nd.Ed)
.
Illionis:
Dow Jones-Irwin.
Gaya MLA
G., Gould,Brice.
"The Dow Jones-Irwin Guide To Commodities Trading".
2nd.Ed
Illionis:
Dow Jones-Irwin,
1981.
Text.