MLA

Gayle, Margot, and Edmund V Gillon. Cast-iron Architecture In New York : a Photographic Survey. New York (N.Y.): Dover, 1974.

APA

Gayle, M., & Gillon, E. V. (1974). Cast-iron architecture in New York : a photographic survey. New York (N.Y.): Dover.

Chicago

Gayle, Margot, and Edmund V. Gillon. Cast-Iron Architecture In New York: A Photographic Survey. New York (N.Y.): Dover, 1974.