Fornos, W. (1987). Gaining people, losing ground: A blueprint for stabilizing word population. The Population Institute.
Citazione stile Chigago Style (17a edizione)Fornos, Werner. Gaining People, Losing Ground: A Blueprint for Stabilizing Word Population. The Population Institute, 1987.
Citatione MLA (9a ed.)Fornos, Werner. Gaining People, Losing Ground: A Blueprint for Stabilizing Word Population. The Population Institute, 1987.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.