Gallasch, P. (1997). The supervision survival manual. Prentice Hall.
Chicago Style aipamenaGallasch, P.A. The Supervision Survival Manual. Sydney: Prentice Hall, 1997.
MLA aipamenaGallasch, P.A. The Supervision Survival Manual. Prentice Hall, 1997.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.