APA (7th ed.) Citation

Vovides, A. P., Resslar, P. M., & Pérez-López, R. (1992). The Cycads of Veracruz, Mexico. El Eco de Virginia.

Chicago Style (17th ed.) Citation

Vovides, Andrew P., Paul M. Resslar, and René Pérez-López. The Cycads of Veracruz, Mexico. Norfolk: El Eco de Virginia, 1992.

MLA (9th ed.) Citation

Vovides, Andrew P., et al. The Cycads of Veracruz, Mexico. El Eco de Virginia, 1992.