Cita APA (7th ed.)

Pickering, K. T. (1995). An Introduction to global environmental issues. Routledge.

Cita Chicago (17th ed.)

Pickering, Kevin T. An Introduction to Global Environmental Issues. London: Routledge, 1995.

Cita MLA (9th ed.)

Pickering, Kevin T. An Introduction to Global Environmental Issues. Routledge, 1995.