Sid, that is a really nice bike. Enjoy it in good health! (I'm like a magpie! I'm drawn to shiny things like chrome lugs!)
When I was a newby, my go-to manual was Richards Bicycle book. Used copies are still available through places like Powells books in Portland. I highly recommend it - the information inside will be germane to the vintage of bike you have, and it's a really fun read. It'll get you in the spirit of a mid '70's bike. (Nostalgia alert!)
Also, while I was searching for a pic, I noticed that there are downloadable versions of a revised edition. I have no experience with the update, but you might want to give it a try.
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