Refrigerator Pickles

9 cups of cucumbers, peeled and sliced thin
1 cup green peppers, sliced thin
1 cup onions, sliced thin
2 tablespoons salt
1 tablespoon celery seed
2 cups sugar
1 cup white vinegar

Prepare cumcumbers, green peppers, and onions. Sprinkle with salt and celery seed. Mix sugar and vinegar. Pour vinegar mixture over cucumber mixture. Put in a large jar and cover.