European Space Policy Institute, SpringerLink (Online service), Schrogl, K., Mathieu, C., & Peter, N. (2009). Yearbook on Space Policy 2007/2008: From Policies to Programmes. Springer Vienna. https://doi.org/10.1007/978-3-211-99091-9
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रEuropean Space Policy Institute, SpringerLink (Online service), Kai-Uwe Schrogl, Charlotte Mathieu, और Nicolas Peter. Yearbook on Space Policy 2007/2008: From Policies to Programmes. Vienna: Springer Vienna, 2009. https://doi.org/10.1007/978-3-211-99091-9.
एमएलए (9वां संस्करण) प्रशस्ति पत्रEuropean Space Policy Institute, et al. Yearbook on Space Policy 2007/2008: From Policies to Programmes. Springer Vienna, 2009. https://doi.org/10.1007/978-3-211-99091-9.
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