D. Gareth Jones Plant pathology : Principles and practice - London Prentice Hall 1987 - 191p D. Gareth Jones: Plant pathology : Principles and practice. London. Prentice Hall, 1987. 0-136807607-025--(632.3JON) ENGLISH ISBN: 0-136807607-025 Dewey Class. No.: 632.3 / JON