Great Britain. Public Record Office., Lyte, H. C. M., Black, J. G., Isaacson, R. F., Morris, G. J., Handcock, G. F., . . . England. Sovereign. (1893). Calendar of the patent rolls preserved in the Public Record Office.: Prepared under the superintendence of the Deputy Keeper of the Records. Edward I. 1272-[1307]. Printed for H.M. Stationery Off., by Eyre and Spottiswoode.

Great Britain. Public Record Office., et al. Calendar of the Patent Rolls Preserved in the Public Record Office.: Prepared Under the Superintendence of the Deputy Keeper of the Records. Edward I. 1272-[1307]. Printed for H.M. Stationery Off., by Eyre and Spottiswoode, 1893.