APA استشهاد

Lewis, E., & Lewis, W. H. (1977). Medical botany. John Wiley and Sons.

استشهاد بنمط شيكاغو

Lewis, E., و W H. Lewis. Medical Botany. New York: John Wiley and Sons, 1977.

MLA استشهاد

Lewis, E., و W H. Lewis. Medical Botany. John Wiley and Sons, 1977.