APA
Sells Dorothy, London school of economics and political science & London school of economics and political science. (1923). British trade board system. : .
Chicago
Sells Dorothy, London school of economics and political science and London school of economics and political science. 1923. British trade board system. : .
Harvard
Sells Dorothy, London school of economics and political science and London school of economics and political science. (1923). British trade board system. : .
MLA
Sells Dorothy, London school of economics and political science and London school of economics and political science. British trade board system. : . 1923.
