Reference - Refers to the Act number or Legal Notice number:
Act number: always use the following format without spaces (year) - (number) yyyy-nn
e.g. 1888-11
Legal Notices: always use following format without spaces (year) / (number) yyyy/nnn
e.g. 1962/012
In the case of subsidiary legislation published before 1971 use the format without spaces (year) . (month) . (day) yyyy.mm.dd
e.g. 1889.01.18