Collins Dictionary of Physics
Eric Deeson
You're Teaching My Child What?
Miriam Grossman
The Olmecs: A History from Beginning to End (Mesoamerican History)
Hourly History
The U.S. Patents of Nikola Tesla
Nikola Tesla
1800 Mechanical Movements: Devices and Appliances
Gardner Dexter Hiscox
Historical Dictionary of the Seventh-Day Adventists
Gary Land