Welch, A.S. Report on the organisation and management of seven agricultural schools in Germany, Belgium and England : made to George B. Loring / by A.S. Welch; A.S. Welch .— : Government printing office, 1885 .— 105 с. — Lang: eng .— URL: https://rucont.ru/efd/119324 (дата обращения: 13.11.2025)