Robert Smithson : The writings of Robert Smithson : essays with illustrations

MLA

Leider, Philip, Robert Smithson, and Sol LeWitt. Robert Smithson : The Writings of Robert Smithson : Essays with Illustrations. New York: New York University Press, 1979.

APA

Leider, P., Smithson, R., & LeWitt, S. (1979). Robert Smithson : The writings of Robert Smithson : essays with illustrations. New York: New York University Press.

Chicago

Leider, Philip, Robert Smithson, and Sol LeWitt. Robert Smithson: The Writings of Robert Smithson : Essays with Illustrations. New York: New York University Press, 1979.