Cita APA (7a ed.)

Sky, A. (1976). Unbuilt America: Forotten architecture in the United States from Thomas Jefferson to the space age by Alison Sky and Michelle Stone. McGraw-Hill.

Cita Chicago Style (17a ed.)

Sky, Alison. Unbuilt America: Forotten Architecture in the United States from Thomas Jefferson to the Space Age by Alison Sky and Michelle Stone. New York: McGraw-Hill, 1976.

Cita MLA (9a ed.)

Sky, Alison. Unbuilt America: Forotten Architecture in the United States from Thomas Jefferson to the Space Age by Alison Sky and Michelle Stone. McGraw-Hill, 1976.