Denmark, its medical organization, hygiene and demography : presented to the Seventh International Congress of hygiene and demography, London 1891 / published with subvention of the Danish government .— : Printed by Fr. Bagge, 1891 .— 537 с. — Lang: eng .— URL: https://rucont.ru/efd/110804 (дата обращения: 16.11.2025)