APA-referens (7:e uppl.)

Fisher, N. (1983). An expenditure approach to estimation of the hidden economy and informal labour market. Bureau of Labour Market Research.

Chicago-referens (17:e uppl.)

Fisher, Norman. An Expenditure Approach to Estimation of the Hidden Economy and Informal Labour Market. Canberra: Bureau of Labour Market Research, 1983.

MLA-referens (8:e uppl.)

Fisher, Norman. An Expenditure Approach to Estimation of the Hidden Economy and Informal Labour Market. Bureau of Labour Market Research, 1983.

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