Dyfyniad APA

Petrus, D. A., & Warda, M. (2003). How to start a business in Pennsylvania (3rd ed.). Sphinx Pub..

Dyfyniad Arddull Chicago

Petrus, Desiree A., and Mark Warda. How to Start a Business in Pennsylvania. 3rd ed. Naperville, Ill.: Sphinx Pub., 2003.

Dyfyniad MLA

Petrus, Desiree A., and Mark Warda. How to Start a Business in Pennsylvania. 3rd ed. Sphinx Pub., 2003.

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