- On Social Evolution (Heritage of sociology series) by Herbert Spencer, 1983-03
- The data of ethicsVolume 9 of Systems of synthetic philosophy, Herbert Spe by Herbert Spencer, 2009-09-02
- The Principles of Psychology / by Herbert Spencer, Volume 1 by Herbert Spencer, 2010-02-22
- The Principles of Sociology, Vol. 3 by Herbert Spencer, 2004-02-28
- The Inductions of Ethics; And, the Ethics of Individual Life by Herbert Spencer, 2010-10-14
- Social Statics: The Conditions Essential to Human Happiness Specified and the First of Them Developed (Classic Reprint) by Herbert Spencer, 2010-04-15
- Crabs, by Herbert Spencer Zim, 1974-04
- The data of ethicsVolume 9 of System of synthetic philosophy, Herbert Spen by Herbert Spencer, 2009-09-02
- Experimental and Clinical Neurotoxicology (Spencer,Experimental and Clinical Neurotoxicology)
- First Principles (Works By and About Herbertt Spencer) by Herbert Spencer, 1999-01-03
- An Epitome of the Synthetic Philosophy: Supplement by Herbert Spencer, Frederick Howard Collins, 2010-01-10
- Principles of Biology 2 Volumes by Herbert Spencer,
- Social Statics: The Man Versus the State by Herbert Spencer, 2003-08
- Herbert Spencer by J Arthur 1861-1933 Thomson, 2010-08-18
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