William, -1916 Macdonald
Makers of Modern Agriculture
William, -1916 Macdonald · 2012
ספרייה ציבורית, Project Gutenberg. בלי הרשמה.
Agriculturists -- BiographyCoke, Thomas William, Earl of Leicester, 1752-1842McCormick, Cyrus Hall, 1809-1884Sinclair, John, Sir, 1754-1835Tull, Jethro, 1674-1741Young, Arthur, 1741-1820