books.google.comhttp://books.google.com/books/about/Electric_circuit_and_machine_experiments.html?id=ttc3AAAAMAAJ&utm_source=gb-gplus-shareElectric circuit and machine experiments
Detalhes do livro "Electric Circuit and Machine Experiments ... Electric Circuit and Machine Experiments. autor. Frederick W. Hehre e J. Arthur Balmford. editora / data. John Wiley & Sons/1940. assunto. Ciências Exatas ... www.sebol.com.br/ detalhes.php?codigo=009080