Gilbert, R. G., Gerba, C. P., Rice, R. C., Bouwer, H., Wallis, C., & Melnick, J. L. (1976). Virus and bacteria removal from wastewater by land treatment.

Gilbert, R G., C P. Gerba, R C. Rice, H. Bouwer, C. Wallis, και J L. Melnick. Virus and Bacteria Removal From Wastewater By Land Treatment. 1976.

Gilbert, R G., et al. Virus and Bacteria Removal From Wastewater By Land Treatment. 1976.