APA (7th ed.) Citation

Dunnett, N. (2011). Small green roofs: Low-tech options for greener living (First edition.). Timber Press.

Chicago Style (17th ed.) Citation

Dunnett, Nigel. Small Green Roofs: Low-tech Options for Greener Living. First edition. Portland, Or.: Timber Press, 2011.

MLA (8th ed.) Citation

Dunnett, Nigel. Small Green Roofs: Low-tech Options for Greener Living. First edition. Timber Press, 2011.