| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| card catalog library system history | 0.35 | 0.1 | 7261 | 89 |
| old library card catalog system | 0.67 | 0.1 | 1109 | 52 |
| card catalog library system | 0.75 | 0.7 | 7630 | 57 |
| card catalog library system online | 0.99 | 0.4 | 9995 | 47 |
| card catalog library system format | 1.08 | 1 | 8646 | 92 |
| card catalog library system definition | 0.8 | 0.8 | 671 | 21 |
| card catalog library system examples | 1 | 1 | 2401 | 70 |
| card catalog in library | 0.77 | 0.9 | 4328 | 75 |
| old library card catalog | 1.62 | 0.6 | 4342 | 99 |
| card catalog library system types | 0.74 | 0.6 | 5591 | 83 |
| library card catalog cards | 1.3 | 0.4 | 2385 | 18 |
| library card catalog vintage | 1.77 | 0.9 | 2342 | 77 |
| online card catalog library | 0.13 | 1 | 6450 | 19 |
| library card catalog storage | 0.03 | 0.6 | 4802 | 84 |
| library catalog card format | 0.75 | 0.5 | 1385 | 26 |
| card catalogue in library | 1.59 | 0.6 | 5209 | 78 |
| when was the card catalog invented | 0.23 | 1 | 5025 | 23 |
