Dyfyniad APA

Union of Concerned Scientists, Allen, J., & Gottfried, K. (2019). March 4: Scientists, students, and society (Anniversary edition.). The MIT Press. https://doi.org/10.7551/mitpress/11671.001.0001

Dyfyniad Arddull Chicago

Union of Concerned Scientists, Jonathan Allen, and Kurt Gottfried. March 4: Scientists, Students, and Society. Anniversary edition. Cambridge, Massachusetts: The MIT Press, 2019. https://doi.org/10.7551/mitpress/11671.001.0001.

Dyfyniad MLA

Union of Concerned Scientists, et al. March 4: Scientists, Students, and Society. Anniversary edition. The MIT Press, 2019. https://doi.org/10.7551/mitpress/11671.001.0001.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.