I am the author of the Gas Pump Identification books, I have written two additions and the 3rd should be available soon. You can purchase a Kindle version of my books at this loscation: https://www.amazon.com/s/ref=nb_sb_noss?url=search-alias%3Dstripbooks&field-keywords=gas+pump+identification+book

If you want to buy one of them I suggest the 2nd Edition. I do not receive an royalties for these E books so I don't mind explaining that these Kindle book are a little hard to negotiate, but at the present time this is all that is available because both of my books are out of print.

Jack Sim

Author, 1st & 2nd editions of Gas Pump ID book, 3rd edition is now available at www.gaspumpbible.com
Air Meter ID book also available