| [Off-season maintenance jobs]
| Brown, George. 1990. Greenkeeping Management. March. p. 12.
| More Keywords | 85091 |
| Verti-draining: A golfer's view
| Anonymous. 1990. Greenkeeping Management. March. p. 14.
| More Keywords | 214570 |
| The changing face of greenkeeping in Britain
| McMillan, Jack. 1990. Greenkeeping Management. March. p. 23.
| More Keywords | 85092 |