I believe the old classic from Jeavon, "How to Grow More Vegetables than You
Ever Thought Possible on Less Land than You Can Imagine" has been long since
translated into many languages, Spanish included. It is, I believe, a
perfect text for the beginning food producer, rural or urban.
I'm forwarding your message to Dave Katz and company at agAccess for a
sanity check. You should contact him directly at agAccess@davis.com. He
sells virtually anything agricultural in print.