1. Soil nutrient bioavailability;Barber,1984
2. Autoradiographic evidence for the differential effect of four plant species in altering the Ca content of the rhizosphere soil;Barber,1970
3. Principles of ion movement through the soil to the plant root;Barber,1962
4. Calcium uptake by calcicole and calcifuge species in the genus Agrostis;Clarkson;J. Ecol.,1965
5. A poinsettia leaf deformity;Criley;Hort. Digest,1984