Columbia subject headings:
Bacillus (Bacteria)--Congresses.
Bacillus subtilis--Congresses.
Bacterial genetics--Congresses.
Genetic regulation--Congresses.
Molecular cloning--Congresses.
Harvard subject headings:
Bacillus (Bacteria)--Congresses.
Bacillus subtilis--Congresses.
Bacterial genetics--Congresses.
Genetic regulation--Congresses.
Molecular cloning--Congresses.
Princeton subject headings:
Bacillus (Bacteria)--Congresses.
Bacillus subtilus--Congresses.
Bacterial genetics--Congresses.
Genetic regulation--Congresses.
Molecular cloning--Congresses.