(1999). Quality watermelon and melon produced in Ilocos Norte. Agriculture.
Chicago Style aipamena"Quality Watermelon and Melon Produced in Ilocos Norte." Agriculture 1999.
MLA aipamena"Quality Watermelon and Melon Produced in Ilocos Norte." Agriculture, 1999.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.