APA (7th ed.) Citation

Williamson, M. Z. (2022). That was now, this is then. Baen.

Chicago Style (17th ed.) Citation

Williamson, Michael Z. That Was Now, This Is Then. New York: Baen, 2022.

MLA (8th ed.) Citation

Williamson, Michael Z. That Was Now, This Is Then. Baen, 2022.

Warning: These citations may not always be 100% accurate.