Cita APA (7th ed.)

Heidt Heller, R. (1997). Richard Long: Wind circle memory sticks. Wilhelm Lehmbruck Museum.

Cita Chicago (17th ed.)

Heidt Heller, Renate. Richard Long: Wind Circle Memory Sticks. Duisburg: Wilhelm Lehmbruck Museum, 1997.

Cita MLA (8th ed.)

Heidt Heller, Renate. Richard Long: Wind Circle Memory Sticks. Wilhelm Lehmbruck Museum, 1997.