Actually I found both. Seem to be same document, was changed from an Air Force Reg AFR to Air Force manual at some point. But it does look like it existed in 1970's as AFM 35-13.
Here is AFM 35-13 reference in Special Orders from 1970 for 6994th SS
Here is AFR 35-13 in special Orders from 1954 for 7551st PSS.
Notice that these are good examples of how Special Orders are created. This format is still in use for group Orders today.
AFR/AFM 35-13 looks to have had something to do with SPecial Orders, not sure how it would pertain to the "memo" Orders in the Bush Docs.
I now want to find a copy of AFM 35-13 and find out EXACTLY what paragraph 2-10 says.
Yes!
1 Full Legislative Day Left Until The AWB Expires