Springer Science and Business Media LLC, 1925

Springer Science and Business Media LLC, 1924

Springer Science and Business Media LLC, 1925

Springer Science and Business Media LLC, 1910

Springer Science and Business Media LLC, 1907

Wiley, 1906

The American Ornithologists' Union, 1906

Oxford University Press (OUP), 1906

Springer Science and Business Media LLC, 1900

Springer Science and Business Media LLC, 1904

JSTOR, 1903

Springer Science and Business Media LLC, 1900

Wiley, 1904

Springer Science and Business Media LLC, 1901

Wiley, 1896

Wiley, 1895

Springer Science and Business Media LLC, 1897

Wiley, 1897

Wiley, 1899

Springer Science and Business Media LLC, 1898