एपीए उद्धरण

(1997). On solid ground: Science, technology, and intergrated land management. Canada: UNCTD.

शिकागो स्टाइल उद्धरण

On Solid Ground: Science, Technology, and Intergrated Land Management. Canada: UNCTD, 1997.

एमएलए उद्धरण

On Solid Ground: Science, Technology, and Intergrated Land Management. Canada: UNCTD, 1997.