
Intermediate Mechanical Study Guide is a popular reference among air conditioning contractors taking their licensing exams through Prov. It is also an important AC textbook for those who wish to go beyond the basics.
I spent days trying to get this book on a different source, and they were not as helpful. I came across this site, and I was able to purchase it from my computer. And also, I was able to pick it up the same day at the store, so I didn't have to pay for shipping either wish was great.jose luces
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Jess Marie