Neuschwander, Cindy. Sör Çepçevre'nin Matematik Maceraları : Açı diyarının büyük şövalyesi/ by Cindy Neuschwander ; illustrated by Wayne Geehan. - 1st ed. - İstanbul : Doruk, 2014. - 32 p. : col. ill ; 24 cm. 3-6. Follett Library Resources. ISBN: 9789755536095 Subjects--Topical Terms: Circle--Fiction.Pi--Fiction.Circle--Fiction.Pi--Fiction.Mathematics--Fiction. Dewey Class. No.: TF NEU/O