. "Barron's Earth science the easy way" . . "Introduces the concept of Earth System Science, with discussions of the earth's major systems (atmosphere, hydrosphere cryosphere, geosphere, and biosphere) and related concepts in astronomy, geology, ecology, and more." . . "Earth science the easy way" . "Earth science the easy way" . . "Lehrbuch" . . "Barron's earth science the easy way" . . . . . . . "Geowissenschaften." . .