Cita APA

Estados Unidos. Executive Office of the President. Office of Management and Budget. (1988). Standard industrial classification manual 1987. Washington: Executive Office of the President.

Citación estilo Chicago

Estados Unidos. Executive Office of the President. Office of Management and Budget. Standard Industrial Classification Manual 1987. Washington: Executive Office of the President, 1988.

Cita MLA

Estados Unidos. Executive Office of the President. Office of Management and Budget. Standard Industrial Classification Manual 1987. Washington: Executive Office of the President, 1988.