I have 1978-79, but not 76-77. The rules in the 78-79 book are identical to the present day rules, EXCEPT rule 8.1. is marked with the big black circle that denotes a change is incorporated in that paragraph. Maybe your Model Aviation search could turn up the change that passed to that paragraph.
Here is the passage, but instead of the black dot, I've used an appropriate (I believe) smiley -
8. Bonus Points.
8.1. A scale model of a carrier aircraft of any nation, provided it displays the national markings of the using nation,
shall receive bonus points. A carrier aircraft is any man-carrying aircraft which was successfully flown and which
meets at least one (1) of the following requirements:
a. Aircraft made actual carrier-type takeoff and arrested landing on an actual or simulated carrier deck, or
b. Aircraft is designated as a carrier aircraft by an acceptable source (in cases where actual carrier-type
takeoff and arrested landing are not documented).
8.1.1. Scale three-view drawings of the full-scale aircraft and proof that the aircraft meets the above requirements
must be submitted to be eligible for scale bonus points. (See Proof of Scale rules in the Unified Scale Judging section
for acceptable sources of plans and documentation.)