00000nam a2200000 a 4500 Llewellyn, Claire aut Verfasser/-in Biorhythmus Tag Nacht Jugendsachbuch Day and Night explore the world in bright sunlight ; discover the world in the darkness of night ; [2 books in one] Claire Llewellyn London Dorling Kindersley 1999 Back to Back 9780751358483 9780751358483 0751358487 0751358487 eng 11, [2 gef. Bl.], 11