Bing, Bo Qing wa ge ge lian qi gong= : 青蛙哥哥练气功 / 青蛙哥哥练气功 Bo Bing; Yuanyuan Shen. - Beijing : China children's Publishing House, 2011. - 109 p. : col. ill. ; 23 cm. With supercover ISBN: 9787514803952 Subjects--Topical Terms: Children's stories, Chinese