Where to find exploded parts diagram 1969 vw beetle?

I've got 3 Chilton's manuals from over the years, some are better than others:

"Chilton's Repair & Tune-Up Guide for the Volkswagen 1949-1971", first published in 1971, sixth printing 1973

This one is hard bound, with thick stiff pages, and has incredibly detailed and well shaded hand drawn exploded parts views and cutaway views at just about every turn, right down to individual washers, with every part labelled.

"Chilton's Repair & Tune-Up Guide Volkswagen 1949-1971", first published in 1971, revised in 1974, thirty-fifth printing 1994

This one is paperback, slightly smaller than the first, with slightly less durable pages. The exploded views have been shrunk a little, and are harder to make out. The ink is much darker, so a lot of the subtle shading in the drawings is missing.

"Chilton Volkswagen Air-Cooled 1949-1969 Repair Manual", Copyright 1997,2007 (your guess as to what printing, doesn't say)

Larger than the first two, paperback, and the pages are practically newsprint. The exploded views have been replaced by black and white pictures which don't have a tenth the detail of the exploded parts views in the other two.