European Weed Research Council. (1961). Weed research. Blackwell Scientific Publications.
Citação do estilo Chicago (17ª ed.)European Weed Research Council. Weed Research. Oxford, Inglaterra: Blackwell Scientific Publications, 1961.
Citação MLA (8ª ed.)European Weed Research Council. Weed Research. Blackwell Scientific Publications, 1961.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.