Columbia subject headings:
Harvard subject headings:
Punjab (India)--History--Partition, 1947.
Sahni, Ruchi Ram, 1863-1948.
Science news--India--Punjab.
Scientists--India--Biography
Princeton subject headings:
Punjab (India)--History--Partition, 1947.
Sahni, Ruchi Ram, 1863-1948.
Science news--India--Punjab.
Scientists--India--Biography.