Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (8a ed.)

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