APA (7e ed.) Bronvermelding

Food and Agriculture Organization of the United Nations. (1979). China: Azolla propagation and small-scale biogas technology. FAO.

Chicago (17e ed.) Bronvermelding

Food and Agriculture Organization of the United Nations. China: Azolla Propagation and Small-scale Biogas Technology. Rome: FAO, 1979.

MLA (9e ed.) Bronvermelding

Food and Agriculture Organization of the United Nations. China: Azolla Propagation and Small-scale Biogas Technology. FAO, 1979.