Balfour, G. W. (1894). The senile heart: Its symptoms, sequelae, and treatment. MacMillan.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रBalfour, George William. The Senile Heart: Its Symptoms, Sequelae, and Treatment. New York: MacMillan, 1894.
एमएलए (8वां संस्करण) प्रशस्ति पत्रBalfour, George William. The Senile Heart: Its Symptoms, Sequelae, and Treatment. MacMillan, 1894.
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