1.
Routledge Encyclopedia of Philosophy. Cornwall: Routledge; 1998.
Routledge Encyclopedia of Philosophy. Cornwall : Routledge, 24 mai 1998. ISBN 0415073103
Craig Edward. (1998). Routledge Encyclopedia of Philosophy: 4 Genealogy-Iqbal, Muhammad. Routledge.
MLA (8th ed.) CitationCraig Edward. Routledge Encyclopedia of Philosophy: 4 Genealogy-Iqbal, Muhammad. Routledge, 1998.
Warning: These citations may not always be 100% accurate.