MLA

Schrogl, Kai-Uwe; Mathieu, Charlotte; Lukaszczyk, Agnieszka, et al. Threats, Risks and Sustainability — Answers by Space. Springer Vienna, 2009.

APA

Schrogl, A., Lukaszczyk, A., Mathieu, C., Schrogl, K., Agnieszka Lukaszczyk, A. Lukaszczyk, & Charlotte Mathieu, C. Mathieu. (2009). Threats, Risks and Sustainability — Answers by Space. Springer Vienna.

Chicago

Schrogl, Kai-Uwe; Mathieu, Charlotte; Lukaszczyk, Agnieszka, Agnieszka Lukaszczyk, Charlotte Mathieu, Kai-Uwe Schrogl, Agnieszka Lukaszczyk, and Charlotte Mathieu. Threats, Risks and Sustainability — Answers by Space. : Springer Vienna, 2009.