Helander, C. (2002). Farming system research: An approach to developing of sustainable farming systems and the role of white clover as a component in nitrogen management.
Citação do estilo Chicago (17ª ed.)Helander, Carl-Anders. Farming System Research: An Approach to Developing of Sustainable Farming Systems and the Role of White Clover as a Component in Nitrogen Management. 2002.
Citação MLA (8ª ed.)Helander, Carl-Anders. Farming System Research: An Approach to Developing of Sustainable Farming Systems and the Role of White Clover as a Component in Nitrogen Management. 2002.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.