| The impact of golf courses on soil quality
| Thein, Steven J. 2002. 2002 Turfgrass and Environmental Research Summary. p. 49.
| More Keywords ↔ | 85343 |
| The impact of golf courses on soil quality
| Thein, Steven J. 2001. 2001 Turfgrass and Environmental Research Summary. p. 56.
| More Keywords ↔ | 78392 |
| The impact of golf courses on soil quality
| Thein, Steven J. 2000. 2000 Turfgrass and Environmental Research Summary [USGA]. p. 72.
| More Keywords ↔ | 72223 |