Mark Bertrand
email: [email protected]
Website: https://www.markbertrand.com
Twitter: https://twitter.com/markbertrand
LinkedIn: https://www.linkedin.com/in/markbertrand/
Facebook: https://www.facebook.com/mark.bertrand.750Facebook Authors Group: https://www.facebook.com/Books-by-Mark-Bertrand-100246639255334
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