Cita APA (7a ed.)

USA, Department of Housing and Urban Development, & USA Department of Housing and Urban Development. (1977). Controlling access in highrise buildings: Approaches and guidelines. U.S. Govt. Print. Office.

Cita Chicago Style (17a ed.)

USA, Department of Housing and Urban Development, y USA Department of Housing and Urban Development. Controlling Access in Highrise Buildings: Approaches and Guidelines. Washington, D.C: U.S. Govt. Print. Office, 1977.

Cita MLA (8a ed.)

USA, Department of Housing and Urban Development, y USA Department of Housing and Urban Development. Controlling Access in Highrise Buildings: Approaches and Guidelines. U.S. Govt. Print. Office, 1977.