TY  - RPRT
TI  - REPLY TO the preceding Discussion by George Alford of Guest Editorial “Early Concepts of the Role of Microorganisms in Hydrogeology”
AU  - W. Back
PY  - 2005
DO  - 10.1111/j.1745-6584.1990.tb02258.x
UR  - https://pubs.usgs.gov/publication/70207069
ID  - 70207069
ER  -