Columbia subject headings:
Animals--Classification--Periodicals.
Biology--Classification--Periodicals.
Biology--Periodicals.
Zoology--Periodicals.
Harvard subject headings:
Animals--Classification--Periodicals.
Biology--Classification--Periodicals.
Biology--Periodicals
Zoology--Periodicals
Princeton subject headings:
Animals--Classification--Periodicals.
Biology--Classification--Periodicals.
Biology--Periodicals.
Periodicals.
Zoology--Periodicals.