APA aipamena

Holtz, H. (1999). The concise guide to becoming an independent consultant. New York: John Wiley & Sons, Inc.

Chicago Style aipamena

Holtz, Herman. The Concise Guide to Becoming an Independent Consultant. New York: John Wiley & Sons, Inc, 1999.

MLA aipamena

Holtz, Herman. The Concise Guide to Becoming an Independent Consultant. New York: John Wiley & Sons, Inc, 1999.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.