Experiments with Alternate Currents of High Potential and High FrequencyNikola TeslaVypredaná3,6Postrážiť
Talks to Teachers on Psychology; and to Students on some of Lifes IdealsWilliam JamesVypredaná3,7Postrážiť
A Discourse upon the Origin and the Foundation of the Inequality among MankindJean-Jacques RousseauVypredaná3,9Postrážiť
