"MGA Parts Catalog" by Moss Motors Ltd
The Moss Motors printed catalog is free, so do click.
In addition to being a parts catalog, this has very nice exploded assembly drawings and a generous dose of practical tech tips. Moss Motors has virtually everything you need for your MGA for daily maintenance, full restoration, extra performance, or dress-up accessories. See the Moss on-line catalog, and get same day shipping from the world's largest British sports car parts inventory. Excellent tech assistance if you need it. Moss parts also available through some local (if you're lucky) distributors, sometimes discounted. The local guys are often helpful with tech assist as well.