APA (7th ed.) Citation

Drees, W. B. (2014). Zygon 49: Almost half a century. Zygon, 49(1), 3-5.

Chicago Style (17th ed.) Citation

Drees, Willem B. "Zygon 49: Almost Half a Century." Zygon 49, no. 1 (2014): 3-5.

MLA (8th ed.) Citation

Drees, Willem B. "Zygon 49: Almost Half a Century." Zygon, vol. 49, no. 1, 2014, pp. 3-5.