TY - BOOK AU - Herbert Spencer TI - Principles of Sociology. Vol. 4 SN - 81-7880-563-4 U1 - 302 PY - 2012/// CY - New Delhi PB - Rajat Publications N1 - Herbert Spencer: Principles of Sociology. Vol. 4. New Delhi. Rajat Publications, 2012. 81-7880-563-4 Rs. 4950.00--(302SPE) ER -