International Labour Organisation & United Nations Development Programme. (1986). Planting techniques: Trainer's copy. International Labour Office.
Citazione stile Chigago Style (17a edizione)International Labour Organisation e United Nations Development Programme. Planting Techniques: Trainer's Copy. Geneva: International Labour Office, 1986.
Citatione MLA (8a ed.)International Labour Organisation e United Nations Development Programme. Planting Techniques: Trainer's Copy. International Labour Office, 1986.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.