APA (7th ed.) Citation

Koch, K. (1986). On the edge: Poems. Viking Penguin.

Chicago Style (17th ed.) Citation

Koch, Kenneth. On the Edge: Poems. New York, N.Y., U.S.A.: Viking Penguin, 1986.

MLA (9th ed.) Citation

Koch, Kenneth. On the Edge: Poems. Viking Penguin, 1986.