Food and Agriculture Organization of the United Nations. (1979). China: Azolla propagation and small-scale biogas technology. FAO.
芝加哥风格引文Food and Agriculture Organization of the United Nations. China: Azolla Propagation and Small-scale Biogas Technology. Rome: FAO, 1979.
MLA引文Food and Agriculture Organization of the United Nations. China: Azolla Propagation and Small-scale Biogas Technology. FAO, 1979.
警告：这些引文格式不一定是100％准确.