APA (7th ed.) Citation

Zafiris, E., Bühlmann, V., & Hovestadt, L. (2021). Natural Communication: The Obstacle-Embracing Art of Abstract Gnomonics. Birkhäuser.

Chicago Style (17th ed.) Citation

Zafiris, Elias, Vera Bühlmann, and Ludger Hovestadt. Natural Communication: The Obstacle-Embracing Art of Abstract Gnomonics. Basel: Birkhäuser, 2021.

MLA (9th ed.) Citation

Zafiris, Elias, et al. Natural Communication: The Obstacle-Embracing Art of Abstract Gnomonics. Birkhäuser, 2021.