Zucchini Bread

INGREDIENTS:

3 cups all-purpose flour
1 teaspoon salt
1 teaspoon baking soda
1 teaspoon baking powder
3 teaspoons ground cinnamon
3 eggs
1 cup vegetable oil
2 1/4 cups white sugar
3 teaspoons vanilla extract
2 cups grated zucchini
1 cup chopped walnuts