National College of Agricultural Engineering. (1972). Donkey cart. National College of Agricultural Engineering].
Citazione stile Chigago Style (17a edizione)National College of Agricultural Engineering. Donkey Cart. [Silsoe, Eng.: National College of Agricultural Engineering], 1972.
Citatione MLA (8a ed.)National College of Agricultural Engineering. Donkey Cart. National College of Agricultural Engineering], 1972.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.