Buga Irina Au. Modification of treaties by subsequent practice - New York Oxford University Press USA 2018 - lvi,407p. cm. ISBN: 9780198787822 (hbk) £ 80.00 Standard No.: 71064 Source: Gift, 02/01/2022, Textual Subjects--Topical Terms: LAW Dewey Class. No.: Z1, Q8