TY  - BOOK
AU  - Spellman Frank R
TI  - Microbiology for water and wastewater operators
SN  - 1566764394
U1  - 579 
PY  - 1997///
CY  - Pennsylvania
PB  - Technomic publishing
KW  - Microbiology
KW  - Wastewater
KW  - Bacteria
ER  -