Ha, look long enough and you'll find anything. I didn't have the computer graphics stuff back then, so my '79 Type II maintenance schedule was pretty much straight out of the Bentley, Section 9-3.3 with these exceptions & additions:
Change oil & filter w/ new seal washer every 3K. Even though there is a seperate drain plug, also pull & clean the strainer, replacing the fiber gaskets. Gasket kit P/N 021 198 031.
Adjust valves except hydraulic models '78-'79 & any retrofits.
Rotate tires (recommend 5-tire rotation) every 6K.
Lubricate front axle (5 fittings) every 6K. Pushing to the 15K recommended was often insufficient.
Change rotor & dist cap every 15K. Note, use the correct, rev-limiting rotor. Although regular rotors may fit, it's stupid economy weighed against the cost of a blown engine. Everybody misses a shift or makes a mistake now & then.
Replace air filter every 15K.
Add leak-down test to compression test every 15K.
Replace windshield wipers every 15K.
Record brake pad & rotor wear every 15K.
Change M/T & A/T fluid every 30K.
Replace V-belts every 30K.
Repack CV joints with new boot kits every 30K.
Repack front wheel bearings every 30K.
Although the manual calls for replacing the O² sensor every 30K ('79 & earlier CA cars so equipped), the current 90K should be adequate. You can test the 0² sensor per the shop manual every 30K. A properly working 0² sensor will cause the idle to 'hunt' a little -- vary revs up & down a few while it constantly adjusts the FI mixture.
Section 4 describes variations for '68-'74 models that would pick up such items as the older oil-bath air filters, air pump filters, EGR filters & valves, and repacking early rear wheel bearings.