Snowden, J. P., V. Cockerell, and H. M. Bowen. "Pesticide usage in maltings 1985-86, Survey Report 67." In Pesticide usage in Scotland : grain storage premises 1982 - 86, edited by G. Hosie and J. P. Snowden, 27-33. Edinburgh: Department of Agriculture and Fisheries for Scotland, 1988.
Carnegie, S. F. "Phoma exigua Desm." In European Handbook of Plant Diseases, edited by I. M. Smith, J. Dunez, R. A. Lelliot, D. H. Phillips and S. A. Archer, 399-400. Oxford: Blackwell Scientific, 1988.
Stewart, W. D. P., P. Rowell, N. W. Kerby, R. H. Reed, and G. C. Machray. "N2 fixing cyanobacteria and their potential applications." In A century of nitrogen fixation research: present status and future prospects, edited by F. J. Bergersen and J. R. Postgate, 179-192. London: The Royal Society, 1987.