TY - BOOK AU - Wonder House. AU - Wonder House. TI - Knowledge encyclopedia - Our Planet Earth: : Rocks & Minerals SN - 9789354402401 U1 - 520 WON PY - 2022/// PB - : Wonder House. KW - Rocks KW - Minerals KW - Encyclopedia N2 - Astronauts and cosmonauts from ten different countries discuss their experiences and insights about the planet earth, in the hopes that all humanity will understand the wonder and fragility of the planet ER -