Cita APA (7th ed.)

Robertson, M. (2014). Sustainability principles and practice. Routledge.

Cita Chicago (17th ed.)

Robertson, Margaret. Sustainability Principles and Practice. Abingdon, Oxon: Routledge, 2014.

Cita MLA (9th ed.)

Robertson, Margaret. Sustainability Principles and Practice. Routledge, 2014.