Columbia subject headings:
Geneticists--Austria--Biography.
Genetics--History.
Mendel's law--History.
Mendel, Gregor, 1822-1884.
Harvard subject headings:
Geneticists--Austria--Biography.
Genetics--History
Mendel's law--History.
Mendel, Gregor, 1822-1884.
Princeton subject headings:
Geneticists--Austria--Biography.
Genetics--History.
Mendel's law--History.
Mendel, Gregor, 1822-1884.