Better seeds: better crops; guide to varieties of field and vegetable crops under trial, observation and propogation. Кеймбридж: National Inst. of Agricult. Botany, 1963 40 p. : 1 ill.
Better seeds: better crops; guide to varieties of field and vegetable crops under trial, observation and propogation. Кеймбридж: National Inst. of Agricult. Botany, 1963 40 p. : 1 ill.
(1963) Better seeds: better crops; guide to varieties of field and vegetable crops under trial, observation and propogation, Кеймбридж: National Inst. of Agricult. Botany 40 p. : 1 ill.
(1963). Better seeds: better crops; guide to varieties of field and vegetable crops under trial, observation and propogation. Кеймбридж: National Inst. of Agricult. Botany, 40 p. : 1 ill.
Better seeds: better crops; guide to varieties of field and vegetable crops under trial, observation and propogation. Кеймбридж: National Inst. of Agricult. Botany; 1963. p. 40 p. : 1 ill.
