The three golden balls of the pawnbrokers.
MLA
De Roover, Raymond. The Three Golden Balls of the Pawnbrokers. Boston: Business Historical Society, 1946.
APA
De Roover, R. (1946). The three golden balls of the pawnbrokers. Boston: Business Historical Society.
Chicago
De Roover, Raymond, The Three Golden Balls of the Pawnbrokers. Boston: Business Historical Society, 1946.