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.
Atenció: Aquestes cites poden no estar 100% correctes.