APA (7th ed.) Citation
Gibson, T. (1992). Stepping out: A guide to short-term missions. Short-term Missions Advocates, Inc.
Chicago Style (17th ed.) Citation
Gibson, Tim. Stepping Out: A Guide to Short-term Missions. Monrovia: Short-term Missions Advocates, Inc, 1992.
MLA (9th ed.) Citation
Gibson, Tim. Stepping Out: A Guide to Short-term Missions. Short-term Missions Advocates, Inc, 1992.
Warning: These citations may not always be 100% accurate.