1. Modes of research in genetics Creator: Pearl, Raymond, 1879-1940. Collection: Core Historical Literature of Agriculture Publisher: Macmillan, Publication Place: New York : Date: 1915 Format: Book
2. The nation's food: a statistical study of a physiological and social problem Creator: Pearl, Raymond, 1879-1940. Collection: Core Historical Literature of Agriculture Publisher: W.B. Saunders Company, Publication Place: London : Date: 1920 Format: Book