APA aipamena

Thayer, R. L. (1994). Gray World, Green Heart Technology, Nature, And The Sustainable Landscape Robert L. Thayer. John Wiley & Sons.

Chicago Style aipamena

Thayer, Robert L. Gray World, Green Heart Technology, Nature, And The Sustainable Landscape Robert L. Thayer. John Wiley & Sons, 1994.

MLA aipamena

Thayer, Robert L. Gray World, Green Heart Technology, Nature, And The Sustainable Landscape Robert L. Thayer. John Wiley & Sons, 1994.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.