Al, there were a few types of Parts Books.
There are the 'one year only' books, like the '1966 Chassis and Body Parts' book I have. It lists only parts for 1966 models and a few parts that fit both 65-66 models. 66 version is just over one inch thick.
Then there are "Master" parts books that cover a range of years. For example, I have a 1974 edition that covers 1940 to 1974. It's composed of three books.... a "Chassis Section", a "Body Section", and a "Illustration Section". (I'm missing the Illustration section) '74 version is 3" thick without the illustration section.
Canadian versions differ slightly in what they cover. In the 'Electronic Garage' section on this site, there is a 1964-72 'Master Parts Catalogue' that covers the Special body style only.
There is also a Canadian 64-66(or 67) version for the Special I'd like to get my hands on!
One year only books give the most accurate data.
Master (1940-1974) books will not include listings for part numbers that have been discontinued. If a specific part has been replaced or superseded by a newer version, it will only show the newest pn. One advantage to the Master is it will show if a part was in several applications covering several years. For example, a 65-66 GS 4 speed throwout bearing was used from 1939-1948, 1953-1963, and 65-66 GS! ...that makes parts hunting much easier!
The 1940-66 Master book you have would give excellent info for 1965 models. Unfortunately, you are missing the 'Chassis' section.