EExploring our Leaving PlanetExploring our Leaving Planetde Robert D. BallardEdiciones (1)Exploring our Leaving Planet (1983)National Geographic SocietyMás obras de Robert D. BallardSSolution of the Pyramid Problem; or, Pyramid Discoveries. wiSolution of the Pyramid Problem; or, Pyramid Discoveries. with a New Theory As to Their Ancient UseIIntelligence from Red-BankIntelligence from Red-BankLLe-galot et ʻolamenuLe-galot et ʻolamenu
SSolution of the Pyramid Problem; or, Pyramid Discoveries. wiSolution of the Pyramid Problem; or, Pyramid Discoveries. with a New Theory As to Their Ancient Use