Cambridge secured a fourth straight win and extended their unbeaten run to seven games by beating Salisbury.
They had to do it the hard way after falling behind to Matt Tubbs' early strike from 40 yards.
But Cambridge levelled when Josh Coulson poked home Danny Crow's pass from close range before Antonio Murray volleyed them ahead from 20 yards.
Scott Neilson wrapped up the points for the home side when he fired into the top corner from the edge of the box.
Salisbury City boss Tommy Widdrington told BBC Wiltshire: "I can't knock my lads at all. We've had umpteen chances at goal and great pressure at their end.
"They had less chances than us, less defending to do but when they were in our box they were a little more ruthless than us.
"I don't want to talk about the officials but they have such a massive effect on the game. People tell me it evens itself out but I haven't seen a lot of evenness at the minute."
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