Columbia subject headings:
Genetic engineering--Congresses.
Genetic recombination--Congresses.
Transduction--Congresses.
Harvard subject headings:
Genetic engineering--Congresses.
Genetic recombination--Congresses.
Transduction--Congresses.
Princeton subject headings:
Genetic engineering--Congresses.
Genetic recombination--Congresses.
Transduction--Congresses.