National College of Agricultural Engineering & Plant Protection Ltd. (1972). Polyrow sprayer. National College of Agricultural Engineering].
Chicago-Zitierstil (17. Ausg.)National College of Agricultural Engineering und Plant Protection Ltd. Polyrow Sprayer. [Silsoe, Eng.: National College of Agricultural Engineering], 1972.
MLA-Zitierstil (8. Ausg.)National College of Agricultural Engineering und Plant Protection Ltd. Polyrow Sprayer. National College of Agricultural Engineering], 1972.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.