Bradbear, N. (2009). Bees and their role in forest livelihood: A guide to the services provided by bees and the sustainable harvesting, processing and marketing of their products. Food and Agriculture Organization of the United Nations.
Trích dẫn kiểu Chicago (xuất bản lần thứ 7)Bradbear, Nicola. Bees and Their Role in Forest Livelihood: A Guide to the Services Provided by Bees and the Sustainable Harvesting, Processing and Marketing of Their Products. Rome: Food and Agriculture Organization of the United Nations, 2009.
Trích dẫn kiểu MLA (xuất bản lần thứ 9)Bradbear, Nicola. Bees and Their Role in Forest Livelihood: A Guide to the Services Provided by Bees and the Sustainable Harvesting, Processing and Marketing of Their Products. Food and Agriculture Organization of the United Nations, 2009.