Columbia subject headings:
Kholodkovskiĭ, N. A. (Nikolaĭ Aleksandrovich), 1858-1921.
Zoologists--Russia (Federation)--Biography.
Harvard subject headings:
Kholodkovskiĭ, N. A. (Nikolaĭ Aleksandrovich), 1858-1921.
Zoologists--Russia (Federation)--Biography.
Princeton subject headings:
Kholodkovskiĭ, N. A. (Nikolaĭ Aleksandrovich), 1858-1921.
Zoologists--Russia (Federation)--Biography.