Citação norma APA

Commission of the European Communities. Directorate-General for Energy, Ferrero, G., Grassi, G., & Williams, H. (1987). Biomass energy from harvesting to storage. Elsevier Applied Science.

Citação norma Chicago

Commission of the European Communities. Directorate-General for Energy, G.L Ferrero, G. Grassi, and H.E Williams. Biomass Energy from Harvesting to Storage. London: Elsevier Applied Science, 1987.

Citação norma MLA

Commission of the European Communities. Directorate-General for Energy, et al. Biomass Energy from Harvesting to Storage. Elsevier Applied Science, 1987.

Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.