APA (7th ed.) Citation

Marschall, L. A. (2008). A Natural History of Time. Natural History, 117(1), 50.

Chicago Style (17th ed.) Citation

Marschall, Laurence A. "A Natural History of Time." Natural History 117, no. 1 (2008): 50.

MLA (9th ed.) Citation

Marschall, Laurence A. "A Natural History of Time." Natural History, vol. 117, no. 1, 2008, p. 50.