- E-bookGuide to Photographing BirdsHarold Stiver
- E-bookBirding the Orkney IslandsHarold Stiver
- E-bookOntario's WaterfallsHarold Stiver
- E-bookBirding Guide to OrkneyHarold Stiver
- E-bookOntario's Old MillsHarold Stiver
- E-bookCovered Bridges of the SouthHarold Stiver
- E-bookNew England Covered BridgesHarold Stiver
- E-bookConnecticut Covered BridgesHarold Stiver
- E-bookVirginia Covered BridgesHarold Stiver
- E-bookSerie: Covered Bridges of North AmericaHarold Stiver
- E-bookDelaware's Covered BridgesHarold Stiver
- E-bookKentucky Covered BridgesHarold Stiver
- E-bookNew York Covered BridgesHarold Stiver
- E-bookMaryland's Covered BridgesHarold Stiver
- E-bookMassachusetts Covered BridgesHarold Stiver
- E-bookMaine Covered BridgesHarold Stiver
- E-bookNew Hampshire Covered BridgesHarold Stiver
- E-bookTennessee Covered BridgesHarold Stiver
- E-bookMichigan Covered BridgesHarold Stiver
- E-bookVermont Covered BridgesHarold Stiver
- E-bookIndiana's Covered BridgesHarold Stiver
- E-bookWest Virginia Covered BridgesHarold Stiver
- E-bookOhio's Covered BridgesHarold Stiver