Cita APA (7a ed.)

Unesco. (1972). Preserving and restoring monuments and historic buildings. Unesco.

Cita Chicago Style (17a ed.)

Unesco. Preserving and Restoring Monuments and Historic Buildings. Paris: Unesco, 1972.

Cita MLA (9a ed.)

Unesco. Preserving and Restoring Monuments and Historic Buildings. Unesco, 1972.