National Azolla Action Program. (1989). Azolla: Its culture, management and utilization in the Philippines. National Azolla Action Program.
芝加哥风格引文National Azolla Action Program. Azolla: Its Culture, Management and Utilization in the Philippines. [Los Baños, Laguna]: National Azolla Action Program, 1989.
MLA引文National Azolla Action Program. Azolla: Its Culture, Management and Utilization in the Philippines. National Azolla Action Program, 1989.
警告：这些引文格式不一定是100％准确.