Cita APA (7a ed.)

Halpern, J., & Blistein, D. (2019). Opium: How an ancient flower shaped and poisoned our world (First edition.). Hachette Books.

Cita Chicago Style (17a ed.)

Halpern, John, y David Blistein. Opium: How an Ancient Flower Shaped and Poisoned Our World. First edition. New York: Hachette Books, 2019.

Cita MLA (8a ed.)

Halpern, John, y David Blistein. Opium: How an Ancient Flower Shaped and Poisoned Our World. First edition. Hachette Books, 2019.

Precaución: Estas citas no son 100% exactas.