National Geographic Society, Washington, D.C, Agaton, M., Bruce, C. L., Olsson, M. O., & Sandell, T. (1988). Our immune system [videorecording]. The Society in association with Sandell & Sons.
Lua i Stíl Chicago (17ú heag.)National Geographic Society, Washington, D.C, Michael Agaton, Constance L. Bruce, Mats Olof Olsson, agus Thore Sandell. Our Immune System [videorecording]. Washington, D.C: The Society in association with Sandell & Sons, 1988.
Lua MLA (9ú heag.)National Geographic Society, Washington, D.C, et al. Our Immune System [videorecording]. The Society in association with Sandell & Sons, 1988.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.