APA aipamena

Halsted, D. D., & Goldstein, C. H. (1990). Continuing education through videotapes.

Chicago Style aipamena

Halsted, D D., and C H. Goldstein. Continuing Education Through Videotapes. 1990.

MLA aipamena

Halsted, D D., and C H. Goldstein. Continuing Education Through Videotapes. 1990.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.