Mathematics for Plumbers and Pipefitters, 8th Edition, 2012, Lee Smith
4.
Any standard backflow text
5.
CFR Title 29, Part 1926 Selections (OSHA), 2013, PSI
Available Study Materials
This study guide only covers the OSHA portion of the PSI exam.
PSI OSHA Selections, 2013 Study Guide
$49.95
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