Habit and convention at the foundation of custom
Customary law in Suárez : will of the sovereign or of the people?
A commentary on the comment : Jeremy Bentham's theory of custom
James C. Carter's natural law theory of custom.
The philosophy of customary law by James Bernard Murphy. ISBN 9780199370627. Published by Oxford University Press in 2014. Publication and catalogue information, links to buy online and reader comments.