Groom, A J R. International relations then and now : origins and trends in interpretation / by A J R Groom, Andre Barrinha and Willam C Olson. - 2nd ed. - London : Routledge, 2019. - 233 p. ISBN: 9780415180207 Subjects--Topical Terms: International relations Dewey Class. No.: 327 / GRO.I