1. The waste products of agriculture: their utilization as humus Creator: Howard, Albert, (as Sir,) 1873-1947. Collection: Core Historical Literature of Agriculture Publisher: H. Milford, Oxford University Press, Publication Place: New York : Date: 1931 Format: Book
2. The soil and health: a study of organic agriculture Creator: Howard, Albert, (as Sir,) 1873-1947. Collection: Core Historical Literature of Agriculture Publisher: The Devin-Adair Company, Publication Place: New York : Date: 1947 Format: Book