Dyfyniad APA

Schnell W J. (1971). Thirty years a watchtower slave (Abridged ed.). Baker House.

Dyfyniad Arddull Chicago

Schnell W J. Thirty Years a Watchtower Slave. Abridged ed. Michigan: Baker House, 1971.

Dyfyniad MLA

Schnell W J. Thirty Years a Watchtower Slave. Abridged ed. Baker House, 1971.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.