2
Engen, Charles Van
| Baker Book House |
1991
3
van Engen, Charles
| Baker Book House |
1996
4
Engen, Charles Van
| MARC |
1997
6
Engen, Charles Van
| American Society of Missiology |
2001
7
Shaw, R. Daniel.
| The Rowman & Littlefield Publishing Group |
2003