Columbia subject headings:
Harvard subject headings:
Kolas, I︠A︡kub, 1882-1956--Art.
Kolas, I︠A︡kub, 1882-1956--Portraits.
Princeton subject headings:
Kolas, I︠A︡kub, 1882-1956--Art.
Kolas, I︠A︡kub, 1882-1956--Portraits.