The Breads of France and How to Bake Them in Your Own Kitchen by Bernard Clayton is still pretty dang good. It was republished in the early 2000s so copies are easy to find..
The "In Bocca" books first came out in the late 1970s and are extraordinary examples of the publisher's art, as well as damn fine cookbooks. Printed on heavy paper with vivid cover pieces on cardboard, each volume in the series focuses on a specific Italian regional cuisine: "Val d'Aosta In Bocca," "Marche In Bocca," "Bolzano In Bocca," etc... There are 20+ books in the series, with some being excruciatingly rare (and not inexpensive). All recipes are written in Italian, English, as well as in the local dialect. They books are kind of too fragile to use in the kitchen, but I take photos of the recipe with my phone and then use that image to cook to without spilling stuff on the book. Since the first edition in the mid-70s, they've gone through 3-4 different publishers. I would avoid the most recent series (Gulliver is the publisher) and stick to the originals if you can find them. There are usually a few different books available on eBay at any given time.
-Eden (who'd also like to recommend Mary & Vincent Price's 1965 classic "A Treasury of Great Recipes" along with Patience Gray's "Honey From A Weed")(which was from 1986, but if you balance that with the Price book, it puts you right smack dab in the 1970s)