Columbia subject headings:
Purkyně, Jan Evangelista, 1787-1869--Correspondence--Bibliography.
Purkyně, Jan Evangelista, 1787-1869--Friends and associates.
Harvard subject headings:
Purkyně, Jan Evangelista, 1787-1869--Correspondence--Bibliography.
Purkyně, Jan Evangelista, 1787-1869--Friends and associates.
Princeton subject headings:
Purkyně, Jan Evangelista, 1787-1869--Correspondence--Bibliography.
Purkyně, Jan Evangelista, 1787-1869--Friends and associates.