(1963). Exploration of Mars: Proceedings of the American Astronautical Society Symposium on the Exploration of Mars, June 6, 7, 1963, Denver, Colorado. Western Periodicals.
Chicago-Zitierstil (17. Ausg.)Exploration of Mars: Proceedings of the American Astronautical Society Symposium on the Exploration of Mars, June 6, 7, 1963, Denver, Colorado. North Hollywood, Calif: Western Periodicals, 1963.
MLA-Zitierstil (9. Ausg.)Exploration of Mars: Proceedings of the American Astronautical Society Symposium on the Exploration of Mars, June 6, 7, 1963, Denver, Colorado. Western Periodicals, 1963.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.