Cita APA (7a ed.)

Wagner, H., & Farnsworth, N. R. (1990). Economic and medicinal plant research. Academic Press.

Cita Chicago Style (17a ed.)

Wagner, H., y Norman R. Farnsworth. Economic and Medicinal Plant Research. London [etc.]: Academic Press, 1990.

Cita MLA (9a ed.)

Wagner, H., y Norman R. Farnsworth. Economic and Medicinal Plant Research. Academic Press, 1990.