1. 1
    by Hidnet, Peter, 1891-
    Published 1950
    Subjects ...Specific gravity....
    Book
  2. 2
    by Galilei, Galileo, 1564-1642
    Published 1960
    Subjects
    Book
  3. 3
    by Rosenholtz, Joseph Leon, 1899-
    Published 1931
    Subjects
    Book