Cita APA (7a ed.)

Lewis, W. H., & Elvin Lewis, M. P. F. (1977). Medical botany: Plants affecting man`s health. John Wiley.

Cita Chicago Style (17a ed.)

Lewis, Walter H., y Memory P. F. Elvin Lewis. Medical Botany: Plants Affecting Man`s Health. New York: John Wiley, 1977.

Cita MLA (8a ed.)

Lewis, Walter H., y Memory P. F. Elvin Lewis. Medical Botany: Plants Affecting Man`s Health. John Wiley, 1977.