APA Edition Citation

Alvin, K. L., Barnard, P. D. W., & Chaloner, W. G. (1968). Studies on fossil plants.

Chicago Edition Citation

Alvin, K L., P D W. Barnard, and W G. Chaloner. Studies on Fossil Plants. London, Academic Press, 1968.

MLA Edition Citation

Alvin, K L., et al. Studies on Fossil Plants. 1968.