APA Citatie

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.

Chicago Style citaat

Ferreira, AM, en 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.

MLA citatie

Ferreira, AM, en 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.