http://www.legislation.gov.uk/nisro/1958/151/madeThe Family Allowances, National Insurance and Industrial Injuries (Reciprocal Agreement with Yugoslavia) Order (Northern Ireland) 1958Government Printer for Northern Ireland2018-03-22NATIONAL INSURANCE The Family Allowances, National Insurance and Industrial Injuries (Reciprocal Agreement with Yugoslavia) Order (Northern Ireland) 1958OrderThe Social Security (Reciprocal Agreements) Order (Northern Ireland) 2005 Sch. 1 2 art. 1