APA (7th ed.) Citation

Wagner, H., Hikino, H., & Farnsworth, N. R. (1988). Economic and medicinal plant research. Academic Press.

Chicago Style (17th ed.) Citation

Wagner, H., Hiroshi Hikino, and Norman R. Farnsworth. Economic and Medicinal Plant Research. London [etc.]: Academic Press, 1988.

MLA (9th ed.) Citation

Wagner, H., et al. Economic and Medicinal Plant Research. Academic Press, 1988.