1991 Buick Century Fuel Filter

Recently aquired the car which has seldom been driven in the last year or so. The first two days I took it on short trips to work and back no problems, the third day the engine stalled but resarted, then later after sitting for a brief period it would start but when I put it into gear and tried to accelerate it would die. I was told it is probably the fuel filter, but I wonder where it is located.