Farm primer. Philippine Council for Agriculture, Forestry and Natural Resources Research and Development.
Citazione stile Chigago Style (17a edizione)Farm Primer. Bicutan: Philippine Council for Agriculture, Forestry and Natural Resources Research and Development.
Citatione MLA (9a ed.)Farm Primer. Philippine Council for Agriculture, Forestry and Natural Resources Research and Development.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.