Enid M. G. Routh — Tangier: England's lost Atlantic outpost, 1912; Martin Malcolm Elbl, "(Re)claiming Walls: The Fortified Médina of Tangier under Portuguese Rule (1471–1661) and as a Modern Heritage Artefact," Portuguese Studies Review 15 (1–2) (2007; publ. 2009): 103–192; a long study of the previous Portuguese Breakwater at Tangier, and interesting notes on the English Mole and its contractors are found in Elbl, Portuguese Tangier, Chapter Eight. For updated research see Elbl, "A Tale of Two Breakwaters: Modelling Portuguese and English Works in the Port of Tangier Bathymetric Space (1500s - 1683)," Portuguese Studies Review, vol. No. 29, Issue 2 (2021), pp. 55-136. The URL offers full text (verified 15 May 2023): https://www.academia.edu/79480783/_A_Tale_of_Two_Breakwaters_Modelling_Portuguese_and_English_Works_in_the_Port_of_Tangier_Bathymetric_Space_1500s_1683_
Friedman, Lawrence M. (1987). "Civil Wrongs: Personal Injury Law in the Late 19th Century". American Bar Foundation Research Journal. 12 (2–3): 351–378. doi:10.1111/j.1747-4469.1987.tb00541.x.