Tohutoro APA (7th ed.)

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

Tohutoru Kātū Chicago (17th ed.)

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

Tohutoro MLA (9th ed.)

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