Piggott, Francis, Sir Documentry history of the armed neutralities 1780 and 1800 / by Francis Piggott and G.W.T. Omond - London : University of London, 1919 - xxxviii, 541 p. ; 24 cm. - "Law of the sea" series . Glossary : p Includes index Subjects--Topical Terms: International law Subjects--Geographic Terms: Great Britain--History