Hartling, Peter He was Hirbel (Korean) : 그 아이는 히르벨이었다 / Peter Hartling - Seoul, Korea : Biryongso , c2007. - 110 p. ; 20cm. - Corgi Yearling boks . Nat. Bib. No.: GBA110055 bnb Subjects--Topical Terms: Korean language materials. Dewey Class. No.: 813.54