Columbia subject headings:
Genetics--Technique--Periodicals.
Molecular genetics--Technique--Periodicals.
Recombinant DNA--Periodicals.
Harvard subject headings:
Genetics--Technique--Periodicals.
Molecular genetics--Technique--Periodicals.
Recombinant DNA--Periodicals.
Princeton subject headings:
Genetics--Technique--Periodicals.
Molecular genetics--Technique--Periodicals.
Recombinant DNA--Periodicals.