MATERIALS FOR THE STUDY OF ELEMENTARY ECONOMICS
LEON CARROLL MARSHALL CHESTER WHITNEY WRIGHT JAMES ALFRED FIELD1913 年出版927 页ISBN:
WEAR OF MATERIALS 1989 VOLUME TWO PAGES 449-814
K.C.LUDEMA1989 年出版366 页ISBN:079180304X
Engineering Graphics Second Edition
Frederick E.Giesecke1975 年出版879 页ISBN:0023427205