Cita APA (7a ed.)

Spaling, H., & Dekker, A. (1996). Cultural sustainable development: Concepts and principles. [s.n.].

Cita Chicago Style (17a ed.)

Spaling, Harry, y Annette Dekker. Cultural Sustainable Development: Concepts and Principles. [S.l.]: [s.n.], 1996.

Cita MLA (9a ed.)

Spaling, Harry, y Annette Dekker. Cultural Sustainable Development: Concepts and Principles. [s.n.], 1996.