APA (7th ed.) Citation

Butler, E. J., & Jones, S. G. (1949). Plant pathology. Macmillan.

Chicago Style (17th ed.) Citation

Butler, E. J., and Samuel Griffith Jones. Plant Pathology. London: Macmillan, 1949.

MLA (9th ed.) Citation

Butler, E. J., and Samuel Griffith Jones. Plant Pathology. Macmillan, 1949.