A letter about liberty and necessity written to the Duke of Newcastle - Hobbes, Thomas 1588-1679 (Printed by J.C. for W. Crook, 1677)
Observations upon a letter of M. Tho. Hobbes ... (p. 23-104). - Reproduction of original in the University of Illinois (Urbana-Champaign Campus). Library. - Wing, H2245B