Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (9a ed.)

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