Barkworth, M. E. 1., Black, C. C., Bugbee, B. G., Cleland, R. E., Dainty, J., Erickson, R. O., . . . Salisbury, F. B. (1996). Units, symbols, and terminology for plant physiology: A reference for presentation of research results in the plant sciences. New York: Oxford University Press.

Barkworth, Mary Elizabeth 1941-, et al. Units, Symbols, and Terminology for Plant Physiology: A Reference for Presentation of Research Results in the Plant Sciences. New York: Oxford University Press, 1996.

Barkworth, Mary Elizabeth 1941-, et al. Units, Symbols, and Terminology for Plant Physiology: A Reference for Presentation of Research Results in the Plant Sciences. New York: Oxford University Press, 1996.