APA (7th ed.) Citation

Gaebelein, A. C. (1988). Half a century: The autobiography of a servant. Garland.

Chicago Style (17th ed.) Citation

Gaebelein, Arno Clemens. Half a Century: The Autobiography of a Servant. New York: Garland, 1988.

MLA (9th ed.) Citation

Gaebelein, Arno Clemens. Half a Century: The Autobiography of a Servant. Garland, 1988.