APA (7th ed.) Citation

Pascal, B., Rüttenauer, W., & Guardini, R. ([ca. 1947]). Gedanken. Sammlung Dieterich.

Chicago Style (17th ed.) Citation

Pascal, Blaise, Wolfgang Rüttenauer, and Romano Guardini. "Gedanken." Sammlung Dieterich [ca. 1947].

MLA (9th ed.) Citation

Pascal, Blaise, et al. "Gedanken." Sammlung Dieterich, [ca. 1947].

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