Columbia subject headings:
Kolas, I︠A︡kub, 1882-1956.
Poets, Belarusian--20th century--Biography.
Harvard subject headings:
Kolas, I︠A︡kub, 1882-1956
Poets, Belarusian--20th century--Biography.
Princeton subject headings:
Kolas, I︠A︡kub, 1882-1956.
Poets, Belarusian--20th century--Biography.