No problem--- the one that you are looking for will be marked “OD 3000-579”.
There are 3 yellow manuals--- “11/75”, “OD 5/77 e”, and “OD 3000-579”--- they cover HG-IA (76-80)--- transitioning to the red manual in IA (80).
If you will PM me your SN, I will advise you on which one would be most proper.
Tony