His The Roman law of slavery, 1909.

His Equity in Roman law, 1983: CIP t.p. (W.W. Buckland)

Studies in the glossators of the Roman law, 1938 : t. p. (...with the collaboration of W. W. Buckland, LL.D.)

Wikipedia, viewed Apr. 16, 2019 : William Warwick Buckland (William Warwick Buckland, M.A., LL.D. (11 June 1859-16 January 1946) ; scholar of Roman law ; Regius Professor of Civil War at the University of Cambridge from 1914 to 1945 ; he entered Caius College in 1881, graduating in 1884 with a first in Law Tropos ; his works include : "The Roman law of slavery", "Equity in Roman law", "Elementary principles of Roman private law", "A textbook of Roman law from Augustus to Justinian", "A manual of Roman private law", "The main institutions of Roman private law", "Roman law and common law", "Studies in the glossators of the Roman law", and "Some reflections on jurisprudence") https://en.wikipedia.org/wiki/William_Warwick_Buckland

Find-A-Grave website, viewed Apr. 16, 2019 : William Warwick Buckland (birth : 11 Jun 1859, Newton Abbot, Teignbridge District, Devon, England ; death : 16 Jan. 1946, Cambridge, City of Cambridge, Cambridgeshire, England) https://www.findagrave.com/memorial/130896398