APA (7th ed.) Zitazioa
Herrmann, P. (2009). Historiography of social professional activity. Nova Science Publishers.
Chicago Style (17th ed.) Zitazioa
Herrmann, Peter. Historiography of Social Professional Activity. New York: Nova Science Publishers, 2009.
MLA (9th ed.) Zitazioa
Herrmann, Peter. Historiography of Social Professional Activity. Nova Science Publishers, 2009.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.