Fornos, W. (1987). Gaining people, losing ground: A blueprint for stabilizing word population. The Population Institute.
Cita Chicago (17th ed.)Fornos, Werner. Gaining People, Losing Ground: A Blueprint for Stabilizing Word Population. The Population Institute, 1987.
Cita MLA (9th ed.)Fornos, Werner. Gaining People, Losing Ground: A Blueprint for Stabilizing Word Population. The Population Institute, 1987.
Atenció: Aquestes cites poden no estar 100% correctes.