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Relationship between the parasite-predator complex and the host-plants of scale insects in Pakistan / ed. by M.A. Ghani and Nasreen Muzaffar.
- 856.21
- Commonwealth agricultural bureaux (CAB),
- 1974.
- Slough :
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An annotated bibliography of colour illustrated deficiency symptoms in tropical crops / by J.B.D. Robinson.
- Commonwealth agricultural bureaux (CAB),
- 1974.
- Slough :