| |||
| introduce tractors (inio agriculture) | |||
| equip with tractors (impf and pf); introduce tractors into agriculture (impf and pf) | |||
| |||
| equip with tractors; introduce tractors (inio agriculture) | |||
| |||
| introduce tractors (inio agriculture) | |||
| equip with tractors (impf and pf); introduce tractors into agriculture (impf and pf) | |||
| |||
| equip with tractors; introduce tractors (inio agriculture) | |||
