It's 1976/7. Earlier in the thread, trying to date another picture, I discovered that there was a minor difference between the collar of the home shirt we wore in 1976/7 and the one for the following season. It's shown here: http://www.historicalkits.co.uk/Manchester_City/Manchester_City.htm
The Leeds game was on Good Friday and was the first of three games in four days. The following day we lost 2-1 at Anfield, which gave Liverpool an important advantage in the title race, and they never surrendered it. On Easter Monday, we beat Boro 1-0 at home with a late goal from Asa Hartford after Boro spent the afternoon managing to suffocate us (as they did very effectively in those days under Jack Charlton - except in the 1976 LC semi 2nd leg, of course). Bit of a mental fixture programme, but no one batted an eyelid back then.
