Columbia subject headings:
Botany--Finland--Periodicals.
Botany--Periodicals.
Zoology--Finland--Periodicals.
Zoology--Periodicals.
Harvard subject headings:
Animals--Finland--Periodicals.
Botany--Periodicals
Plants--Finland--Periodicals.
Zoology--Periodicals
Princeton subject headings:
Botany--Finland--Periodicals.
Botany--Periodicals.
Periodicals.
Zoology--Finland--Periodicals.
Zoology--Periodicals.