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London
Vermilion
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9780091906818
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1982
671723650
Swindoll, Charles R.
Dallas
Word Publishing
1989
849931770
Vander Zanden, James Wilfried
Boston
McGraw-Hill
2000
72293454
1967
Batten, Joe D.
Parker Publishing Company
1968
Salt Lake City
Franklin Covey
1999
1929494025