홈 / 책 찾기 / 판 고르기
판 3개, 최신 판부터
Great Explorations in Math and Science, Lawrence Hall of Science, University of California at Berkeley, 1999, ISBN 9780924886317
Lawrence Hall of Science, University of California, 1990, ISBN 9780912511702
Natl Science Teachers Assn, 1988, 무선(페이퍼백), ISBN 9789991803067
