Lasky, Kathryn. The Librarian who measured the Earth (Korean) : 지구 둘레를 잰 도서관 사서 / Kathryn Lasky ; illustrated by Kevin Hawkes. - Seoul, Korea : Mirae M&B, 2014. - 49 p. ISBN: 9788983942890 Subjects--Topical Terms: Korean language materials.