New old-stock. 
Secrets of Bonsai - Miniature Trees - Their Care and Maintenance
by: Charles Harnett, 1992 - 184 pages - Soft Cover

Covers these topics:
- Watering
- Fertilizing
- Pruning
- Repotting
- Soil Mixes
- Containers
...and more.

Comes from a lot of brand-new, unopened, vintage books.