APA (7th ed.) Zitazioa
Siropolis, N. C. (1990). Small business management: A guide to entrepreneurship (4th ed.). Houghton Mifflin.
Chicago Style (17th ed.) Zitazioa
Siropolis, Nicholas C. Small Business Management: A Guide to Entrepreneurship. 4th ed. Boston: Houghton Mifflin, 1990.
MLA (9th ed.) Zitazioa
Siropolis, Nicholas C. Small Business Management: A Guide to Entrepreneurship. 4th ed. Houghton Mifflin, 1990.
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