| Description | Paice, T E (Wiltshire)
Parker, R N (Punjab, Dehra Dun Forest Research Institute)
Parker, W B (British Thomson - Houston Co Ltd)
Paulson, R (London)
Payne, C H (National Chrysanthemum Society, London)
Perceval, J (Reading, University College)
Perks, F J (London)
Phillips, E P (South Africa, Department of Agriculture) |