Barna, G. (1992). The power of vision: How you can capture and apply God's vision for your ministry. regal books.

Barna, George. The Power of Vision: How You Can Capture and Apply God's Vision for Your Ministry. California: regal books, 1992.

Barna, George. The Power of Vision: How You Can Capture and Apply God's Vision for Your Ministry. regal books, 1992.