(1999). Quality watermelon and melon produced in Ilocos Norte. Agriculture.
Chicago Style (17th ed.) Citation"Quality Watermelon and Melon Produced in Ilocos Norte." Agriculture 1999.
MLA引文"Quality Watermelon and Melon Produced in Ilocos Norte." Agriculture, 1999.
警告：這些引文格式不一定是100％准確.