National College of Agricultural Engineering & Plant Protection Ltd. (1972). Polyrow sprayer. National College of Agricultural Engineering].
芝加哥风格引文National College of Agricultural Engineering 与 Plant Protection Ltd. Polyrow Sprayer. [Silsoe, Eng.: National College of Agricultural Engineering], 1972.
MLA引文National College of Agricultural Engineering 与 Plant Protection Ltd. Polyrow Sprayer. National College of Agricultural Engineering], 1972.
警告：这些引文格式不一定是100％准确.