Não informado. (1969). Fertiliser, feed and pesticide journal. Association of British Organic Fertilisers.
Chicagoスタイル(17版)引用形式Não informado. Fertiliser, Feed and Pesticide Journal. London: Association of British Organic Fertilisers, 1969.
MLA(8版)引用形式Não informado. Fertiliser, Feed and Pesticide Journal. Association of British Organic Fertilisers, 1969.
警告: この引用は必ずしも正確ではありません.