Muir, R. (1999). Approaches to landscape. Macmillan.
Cita Chicago (17th ed.)Muir, Richard. Approaches to Landscape. Basingstoke, Eng: Macmillan, 1999.
Cita MLA (9th ed.)Muir, Richard. Approaches to Landscape. Macmillan, 1999.
Atenció: Aquestes cites poden no estar 100% correctes.