APA aipamena

BECKHARD, R. (1992). Changing The Essence. Jossey-Bass Inc.

Chicago Style aipamena

BECKHARD, Richard. Changing The Essence. Jossey-Bass Inc, 1992.

MLA aipamena

BECKHARD, Richard. Changing The Essence. Jossey-Bass Inc, 1992.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.