APA (7th ed.) Citation

Keyser, P. T., & Irby, G. L. (2008). The encyclopedia of ancient natural scientists: The Greek tradition and its many heirs. Routledge.

Chicago Style (17th ed.) Citation

Keyser, Paul T., and Georgia L. Irby. The Encyclopedia of Ancient Natural Scientists: The Greek Tradition and Its Many Heirs. London ; New York: Routledge, 2008.

MLA (9th ed.) Citation

Keyser, Paul T., and Georgia L. Irby. The Encyclopedia of Ancient Natural Scientists: The Greek Tradition and Its Many Heirs. Routledge, 2008.