(1987). Physical properties of the surface materials at the Viking landing sites on Mars: A summary of the results of the Physical Properties Investigation of Viking Landers 1 and 2 during the Viking 1975 project. United States Gov. Print. Off.
Chicago-Zitierstil (17. Ausg.)Physical Properties of the Surface Materials at the Viking Landing Sites on Mars: A Summary of the Results of the Physical Properties Investigation of Viking Landers 1 and 2 During the Viking 1975 Project. Washington: United States Gov. Print. Off, 1987.
MLA-Zitierstil (9. Ausg.)Physical Properties of the Surface Materials at the Viking Landing Sites on Mars: A Summary of the Results of the Physical Properties Investigation of Viking Landers 1 and 2 During the Viking 1975 Project. United States Gov. Print. Off, 1987.