APA aipamena

Hybels, S. (1986). Communicating effectively. Random House.

Chicago Style aipamena

Hybels, Saundra. Communicating Effectively. Random House, 1986.

MLA aipamena

Hybels, Saundra. Communicating Effectively. Random House, 1986.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.