APA Style

Marks, W, F, S, S, G. (2012). Managerial economics (7th ed). United States of America: by John Wiley & Sons, Inc.

MLA Style

Marks, William, F., Samuelson,, Stephen, G.. "Managerial economics". 7th ed United States of America: by John Wiley & Sons, Inc, 2012. Electronic Resource.