Gaya APA
Levine, Sumner N.. (1979).
The dow Jones-Irwin : business almanac 1979 .
America:
Dow Jones-Irwin.
Gaya Chicago
Levine, Sumner N..
The dow Jones-Irwin : business almanac 1979.
America:
Dow Jones-Irwin,
1979.
Text.
Gaya MLA
Levine, Sumner N..
The dow Jones-Irwin : business almanac 1979.
America:
Dow Jones-Irwin,
1979.
Text.
Gaya Turabian
Levine, Sumner N..
The dow Jones-Irwin : business almanac 1979.
America:
Dow Jones-Irwin,
1979.
Print.