Preheat oven to 325 Farenheit and set oven rack in middle position. Grease a 8 x 4 inch loaf pan and set aside.
In medium bowl, combine flours, salt, baking soda, baking powder, cloves, cinnamon, and nutmeg. Whisk until well combined.
In a large bowl or electric mixer, beat the butter and sugar on medium speed until just blended. Add the egg and continue beating until light and fluffy. Beat in the pumpkin.
Add the flour mixture and mix on low speed until combined.
Turn the batter into the prepared pan and bake for 1 hour or until a cake tester inserted into the center comes out clean. Let the loaves cool in the pan for 10 minutes then turn out onto a wire rack to cool completely.