Cita APA (7a ed.)

Johnson, S. (1979). The Pollution control policy of the European communities. Graham & Trotman.

Cita Chicago Style (17a ed.)

Johnson, Stanley. The Pollution Control Policy of the European Communities. London: Graham & Trotman, 1979.

Cita MLA (9a ed.)

Johnson, Stanley. The Pollution Control Policy of the European Communities. Graham & Trotman, 1979.