TY  - BOOK
AU  - Blackburn,John Stead
TI  - Organic husbandry: a symposium
AV  - S661 .B6
CY  - London
PB  - The Biotechnic Press, 1949.
N1  - "Compiled and issued by John S. Blackburn."-- p. 160; Imprint stamped on t.p; Bibliography: 149-160
ER  -