Marriott, H. J. L. (1972). Workshop in electrocardiography. Tampa Tracings.
Lua i Stíl Chicago (17ú heag.)Marriott, Henry J. L. Workshop in Electrocardiography. Oldsmar, FL: Tampa Tracings, 1972.
Lua MLA (9ú heag.)Marriott, Henry J. L. Workshop in Electrocardiography. Tampa Tracings, 1972.
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