KCTS (Television station : Seattle, Wash.), PBS Home Video, & Pearson, S. (2006). Exploring space: The quest for life (Widescreen version.). PBS Home Video.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रKCTS (Television station : Seattle, Wash.), PBS Home Video, और Scott Pearson. Exploring Space: The Quest for Life. Widescreen version. [S.l.]: PBS Home Video, 2006.
एमएलए (8वां संस्करण) प्रशस्ति पत्रKCTS (Television station : Seattle, Wash.), et al. Exploring Space: The Quest for Life. Widescreen version. PBS Home Video, 2006.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.