Citation: B. Philp, FOUNDATIONS OF ANALYTICAL MARXISM, VOL 1, VOL 2 - ROEMER,JE, Manchester School of Economic and Social Studies, 62(4), 1994, pp. 456-457
Citation: Hr. Dillard et al., A GROWER SURVEY OF DISEASES, INVERTEBRATE PESTS, AND PESTICIDE USE ONPOTATOES GROWN IN SOUTH-AUSTRALIA, Australian journal of experimental agriculture, 33(5), 1993, pp. 653-661