APA (7th ed.) Citation
Siewert, J. A., & Valdez, E. G. (1997). Mission handbook. Evangelism and Missions Information Service.
Chicago Style (17th ed.) Citation
Siewert, John A., and Edna G. Valdez. Mission Handbook. Wheaton, Ill.: Evangelism and Missions Information Service, 1997.
MLA (9th ed.) Citation
Siewert, John A., and Edna G. Valdez. Mission Handbook. Evangelism and Missions Information Service, 1997.
Warning: These citations may not always be 100% accurate.