Não informado. (1970). Extension Bulletin. Asian and Pacific Council, Food and Fertilizer Technology Center.
Chicago-Zitierstil (17. Ausg.)Não informado. Extension Bulletin. Taipei: Asian and Pacific Council, Food and Fertilizer Technology Center, 1970.
MLA-Zitierstil (8. Ausg.)Não informado. Extension Bulletin. Asian and Pacific Council, Food and Fertilizer Technology Center, 1970.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.