JQK				Spencer, Herbert (1820 - 1903)
JQKD/U					A system of synthetic philosophy
JQKE/V					First principles
JQKF/W					The principles of biology
JQKG/X					The principles of psychology
JQKH/Y					Principles of ethics

© UB Siegen / Dr. A. vom Heede (2011-07-06 Simone Niederfranke)