Prego, R., Belzunce Segarra, M. J., Helios-Rybicka, E., & Barciela, M. C. (1999). Cadmium, manganese, nickel and lead contents in surface sediments of the lower Ulla River and its estuary (northwest Spain).
Citação norma ChicagoPrego, R., María Jesús Belzunce Segarra, E. Helios-Rybicka, y M. Carmen Barciela. Cadmium, Manganese, Nickel and Lead Contents in Surface Sediments of the Lower Ulla River and Its Estuary (northwest Spain). 1999.
Citação norma MLAPrego, R., María Jesús Belzunce Segarra, E. Helios-Rybicka, y M. Carmen Barciela. Cadmium, Manganese, Nickel and Lead Contents in Surface Sediments of the Lower Ulla River and Its Estuary (northwest Spain). 1999.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.