Ferreira, A., & Vale, C. (2001). Seasonal and inter-annual variations of PCB and DDT contents in the oyster Crassostrea angulata from the Sado Estuary (Portugal). Iniversidad Autónoma de Baja California.

Ferreira, AM, و C. Vale. Seasonal and Inter-annual Variations of PCB and DDT Contents in the Oyster Crassostrea Angulata From the Sado Estuary (Portugal). Iniversidad Autónoma de Baja California, 2001.

Ferreira, AM, و C. Vale. Seasonal and Inter-annual Variations of PCB and DDT Contents in the Oyster Crassostrea Angulata From the Sado Estuary (Portugal). Iniversidad Autónoma de Baja California, 2001.