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    A compilation of literature pertaining to studies in duo-chrome refraction.

    [Chicago] : Riggs optical company, 1933
    Format: Book


  3. 3

    Computation of achromatic objectives by Stephens, Robert E.

    Washington : For sale by the Supt. of Docs., U.S. Govt. Print. Off, 1954
    Format: Government Document Book


  4. 4

    The behavior of centrioles and the structure and formation of the achromatic figure. by Went, Hans Adriaan

    Wien, New York, Springer, 1966
    Format: Book