You really aren't missing that much with the Babs Gonzales book. I'd call it a fun read, but how much of it can be believed is difficult to assess. Since it was self published back in the 60s, it is hard to find and expensive to buy if you do find it (though its original price was 95 cents!). I got it from an ebay seller who was, I'm pretty sure, a member of this Board, though I don't know whether s/he still is!
As for the Reig book, that one is worth finding. I got if from my local library. I see that it's for sale on Amazon and Ebay, but for too much money (in my view)!