Cita APA (7a ed.)

Alexander, C., & Mehaffy, M. W. (2016). A city is not a tree: 50th anniversary edition. Sustasis Press.

Cita Chicago Style (17a ed.)

Alexander, Christopher, y Michael W. Mehaffy. A City Is Not a Tree: 50th Anniversary Edition. Portland: Sustasis Press, 2016.

Cita MLA (9a ed.)

Alexander, Christopher, y Michael W. Mehaffy. A City Is Not a Tree: 50th Anniversary Edition. Sustasis Press, 2016.