Cita APA (7a ed.)

Balfour, G. W. (1894). The senile heart: Its symptoms, sequelae, and treatment. MacMillan.

Cita Chicago Style (17a ed.)

Balfour, George William. The Senile Heart: Its Symptoms, Sequelae, and Treatment. New York: MacMillan, 1894.

Cita MLA (8a ed.)

Balfour, George William. The Senile Heart: Its Symptoms, Sequelae, and Treatment. MacMillan, 1894.