Citação norma APA

Schmidt, M. F. (1937). Operating expenses of the retail lumber yards in the mountain states region, 1936. Bureau of Business and Government Research, Universtiy of Colorado.

Citação norma Chicago

Schmidt, Martin Frederick. Operating Expenses of the Retail Lumber Yards in the Mountain States Region, 1936. [Boulder]: Bureau of Business and Government Research, Universtiy of Colorado, 1937.

Citação norma MLA

Schmidt, Martin Frederick. Operating Expenses of the Retail Lumber Yards in the Mountain States Region, 1936. Bureau of Business and Government Research, Universtiy of Colorado, 1937.

Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.