| National bermudagrass variety trial
| Kenna, Mike. 1989. Oklahoma State University Turfgrass and Nursery Field Day. p. 4-8.
| More | 233147 |
| Creeping bentgrass variety trial
| Barber, Joel F. 1989. Oklahoma State University Turfgrass and Nursery Field Day. p. 9-11.
| More | 233148 |
| Tall fescue variety trial
| Barber, Joel F. 1989. Oklahoma State University Turfgrass and Nursery Field Day. p. 12-14.
| More | 233149 |
| Wildflower evaluation
| Curry, Kellie K.; Barber, Joel F. 1989. Oklahoma State University Turfgrass and Nursery Field Day. p. 15-17.
| More | 233150 |