APA Style
Ekelund, Robert B, Tollison, Robert D. (1990).
Economics, Third Edition (3).
New York:
Haper Collins Publishers.
Chicago Style
Ekelund, Robert B, Tollison, Robert D.
Economics, Third Edition.
3
New York:
Haper Collins Publishers,
1990.
Text.
MLA Style
Ekelund, Robert B, Tollison, Robert D.
Economics, Third Edition.
3
New York:
Haper Collins Publishers,
1990.
Text.
Turabian Style
Ekelund, Robert B, Tollison, Robert D.
Economics, Third Edition.
3
New York:
Haper Collins Publishers,
1990.
Print.