- Author: Thomas H. Johnson, Helen S. Johnson
- Language: English
- Year: 2011
- Author: Hemachandra Helen M. Johnson (translator)
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- Author: Barry C. Burnham Helen B. Johnson
- Language: English
- Year: 1979
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- Year: 2015
La mujer invisible
epub
- Author: Helen Walmsley-Johnson
- Language: Spanish
- Year: 2015
- Author: Armstrong Helen L., Johnson Anthony N., McCulloh Ian A
- Language: English
- Year: 2013
- Author: Helen Kendrick Johnson
- Language: English
- Year: 2004
