Gaya APA

Voigt, J, S. (1960). Heart sounds : diagnosis of heart disease a gramophone record and guide containing 2 auscultuition example . Jerman: J. F Lehmann Verlag.

Gaya MLA

Voigt, Jorgen, Schmidt. "Heart sounds : diagnosis of heart disease a gramophone record and guide containing 2 auscultuition example". Jerman: J. F Lehmann Verlag, 1960. Text.