Looking for a children’s book which my mom read to me so many times that she memorized the verses below. The time frame could be anywhere from the early 80’s back to the 40’s. “When a cement truck travels, it mixes water, sand and gravel. When it’s travels are complete, it’s full of freshly made concrete. ” “When someone’s in trouble, the police get a call. The police car can get there in no time at all. It’s flashing lights and siren say, ‘I’m in a hurry. Get out of the way!'” It appears to be about service vehicles. I’ve tried Google searches but came up with nothing. Any help is greatly appreciated!