Philippines (Republic). Industrial Development Center. (1956). Cotton: Cultivation, grading, and marketing. [s.n.
Citazione stile Chigago Style (17a edizione)Philippines (Republic). Industrial Development Center. Cotton: Cultivation, Grading, and Marketing. Manila: [s.n, 1956.
Citatione MLA (9a ed.)Philippines (Republic). Industrial Development Center. Cotton: Cultivation, Grading, and Marketing. [s.n, 1956.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.