SENGE P.M. (1990). FIFTH DISCIPLINE. DOUBLE DAY.
Chicago Style aipamenaSENGE P.M. FIFTH DISCIPLINE. NEW YORK: DOUBLE DAY, 1990.
MLA aipamenaSENGE P.M. FIFTH DISCIPLINE. DOUBLE DAY, 1990.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.
SENGE P.M. (1990). FIFTH DISCIPLINE. DOUBLE DAY.
Chicago Style aipamenaSENGE P.M. FIFTH DISCIPLINE. NEW YORK: DOUBLE DAY, 1990.
MLA aipamenaSENGE P.M. FIFTH DISCIPLINE. DOUBLE DAY, 1990.