1. The histology of race non specific resistance to Puccinia hordei Otth in barley;Clifford,1972
2. Relation between compatible and incompatible infection sites of Puccinia hordei on barley;Clifford;Transactions of the British Mycological Society,1974
3. The choice of barley genotypes to differentiate races of Puccinia hordei Otth;Clifford;Cereal Rusts Bulletin,1974
4. A comparative histology of some barley brown rust interactions;Clifford;Annals of Applied Biology,1978
5. Hypersensitive resistance of barley to brown rust (Puccinia hordei Otth);Clifford,1976