APA Style
Peterson, Willis L.. (1991).
Principles of Economics : Micro. 8th Edition (8th Edition).
Massachusetts:
Irwin.
Chicago Style
Peterson, Willis L..
Principles of Economics : Micro. 8th Edition.
8th Edition
Massachusetts:
Irwin,
1991.
Text.
MLA Style
Peterson, Willis L..
Principles of Economics : Micro. 8th Edition.
8th Edition
Massachusetts:
Irwin,
1991.
Text.
Turabian Style
Peterson, Willis L..
Principles of Economics : Micro. 8th Edition.
8th Edition
Massachusetts:
Irwin,
1991.
Print.