A System of synthetic philosophy. Vol. 6, The principles of sociology.

Autor: Spencer, Herbert, 1820-1903
Rok: 1904

A System of synthetic philosophy. Vol. 7, The principles of sociology.

Autor: Spencer, Herbert, 1820-1903
Rok: 1902

Herberta Spencera Filosofie souborná : u výtahu, jejž pořídil F. Howard Collins

Autor: Spencer, Herbert, 1820-1903 Filosofie souborná

Rok: 1901

O studiu sociologie

Autor: Spencer, Herbert, 1820-1903
Rok: 1898

A System of synthetic philosophy. Vol. 8, The principles of sociology.

Autor: Spencer, Herbert, 1820-1903
Rok: 1897

First principles

Autor: Spencer, Herbert, 1820-1903
Rok: 1880