Columbia subject headings:
Bratanov, Kiril--Bibliography.
Veterinarians--Bulgaria--Bibliography.
Harvard subject headings:
Bratanov, Kiril--Bibliography.
Bratanov, Kiril.
Physiologists--Bulgaria--Bibliography.
Physiologists--Bulgaria--Biography.
Veterinary medicine--Bulgaria--Bibliography.
Veterinary medicine--Bulgaria--Biography.
Princeton subject headings:
Bratanov, Kiril--Bibliography.
Veterinary medicine--Bulgaria--Bio-bibliography.