APA (7th ed.) Citation

Rich, T. C. G., Jermy, A. C., & Carey, J. L. (1998). Plant crib 1998. Botanical society of the British isles.

Chicago Style (17th ed.) Citation

Rich, T. C. G., A. C. Jermy, and J. L. Carey. Plant Crib 1998. London: Botanical society of the British isles, 1998.

MLA (8th ed.) Citation

Rich, T. C. G., et al. Plant Crib 1998. Botanical society of the British isles, 1998.