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REFERENDUMS 1937: CONSTITUTION ALTERATION (AVIATION) 1936; CONSTITUTION ALTERATION (MARKETING) 1936; TO BE HELD ON SATURDAY, THE SIXTH DAY OF MARCH, 1937. (1937, February 22). Commonwealth of Australia Gazette (National : 1901 - 1973), p. 335. Retrieved February 21, 2020, from http://nla.gov.au/nla.news-article232657398