Columbia subject headings:
Poets, Bulgarian--Biography.
Razt︠s︡vetnikov, Asen.
Zidarov, Kamen, 1902-1987.
Harvard subject headings:
Poets, Bulgarian--Biography.
Razt︠s︡vetnikov, Asen--Biography.
Zidarov, Kamen, 1902-1987--Biography.
Princeton subject headings: