Chambers, R. (1997). Whose reality counts? ITDG.
Chicago Style (17th ed.) ZitazioaChambers, Robert. Whose Reality Counts? London: ITDG, 1997.
MLA (9th ed.) ZitazioaChambers, Robert. Whose Reality Counts? ITDG, 1997.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.