Cita APA (7th ed.)

United Nations. (1997). On solid ground: Science, technology, and integrated land management. IDRC.

Cita Chicago (17th ed.)

United Nations. On Solid Ground: Science, Technology, and Integrated Land Management. Ottawa: IDRC, 1997.

Cita MLA (9th ed.)

United Nations. On Solid Ground: Science, Technology, and Integrated Land Management. IDRC, 1997.