- Author: Mentor Publications
- Language: English
- Year: 1976
- Author: Andrew Kinder Rick Hughes Cary L. Cooper
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- Author: Locksmithing Institute
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- Author: David Calvin
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- Year: 2014
- Author: Desert Publications
- Language: English
- Year: 1974
- Author: Illinois Lock Company
- Language: English
- Author: Locksmith Ledger
- Language: English
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- Author: Bill Valentine
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- Year: 1995
- Author: Anthony Luizzo Bernard Scaglione
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- Author: Jozef Martinka
- Language: English
- Year: 2022