Table Top Games i.e. WRG, includes the Spanish army in their "Ultra Modern Army List and Organizations." Well oop but there may be some floating around.
They used what appears to be standard US organization for the time, 5 tanks in a platoons, 3 platoons plus 2 in the HQ for a 17 tank company, Tanks were either M48A5, AMX 30 or M47 depending on unit and time frame.
Mech infantry has three squads and a HQ, each with a M113 APC in each platoon, three platoons plus an AT section with 2 106mm RCL or two TOW launchers carried by 2 M113 , 3 81mm SP mortars mounted in M113 plus the HQ mounted in an additional M 113.
Motorized infantry is the same but with trucks instead of APCs.
Nothing is said regarding how the airborne brigade is organized or equipped.