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Cover for Hermann L. F. Von Helmholtz · Scientific Papers: Physics, Chemistry, Astronomy, Geology: the Five Foot Shelf of Classics, Vol. Xxx (In 51 Volumes) (Paperback Book) (2010)
Paperback Book
Scientific Papers: Physics, Chem...
Hermann L. F. Von Helmholtz
Cover for Hermann L. F. Von Helmholtz · Scientific Papers: Physics, Chemistry, Astronomy, Geology: the Five Foot Shelf of Classics, Vol. Xxx (In 51 Volumes) (Hardcover Book) (2010)
Hardcover Book
Scientific Papers: Physics, Chem...
Hermann L. F. Von Helmholtz