| 435 / | HD | CHEMISTRY: MOLECULAR BIOLOGY AND MICROBIOLOGY |
| 821 | DF | MICRO-ORGANISMS USED IN THE DESTRUCTION OF HAZARDOUS OR TOXIC WASTE {5} |
| 822 | DF | .~ Using bacteria or actinomycetales {39} |
| 886 | DF | .~.~ Streptomyces {20} |
| 894 | | .~.~.~ Streptomyces diastatochromogenes |