(1986). Power. Blackwell.
Chicago Style (17th ed.) ZitazioaPower. Oxford: Blackwell, 1986.
MLA (9th ed.) ZitazioaPower. Blackwell, 1986.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.
(1986). Power. Blackwell.
Chicago Style (17th ed.) ZitazioaPower. Oxford: Blackwell, 1986.
MLA (9th ed.) ZitazioaPower. Blackwell, 1986.