APA (7th ed.) Zitazioa
ebrary, Inc, & Wrigley, C. (1993). Challenges of labour: Central and Western Europe, 1917-1920. Routledge.
Chicago Style (17th ed.) Zitazioa
ebrary, Inc, eta Chris Wrigley. Challenges of Labour: Central and Western Europe, 1917-1920. London ; New York: Routledge, 1993.
MLA (9th ed.) Zitazioa
ebrary, Inc, eta Chris Wrigley. Challenges of Labour: Central and Western Europe, 1917-1920. Routledge, 1993.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.