APA aipamena

Hayward, T. (1995). Ecological thought: An introduction. Polity Press Blackwell Publishers.

Chicago Style aipamena

Hayward, Tim. Ecological Thought: An Introduction. Cambridge, UK, Cambridge, MA: Polity Press Blackwell Publishers, 1995.

MLA aipamena

Hayward, Tim. Ecological Thought: An Introduction. Polity Press Blackwell Publishers, 1995.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.