APA (7th ed.) Citation

Lewis, T. (1920). The Mechanism and graphic registration of the heart beat. Shaw.

Chicago Style (17th ed.) Citation

Lewis, Thomas. The Mechanism and Graphic Registration of the Heart Beat. London: Shaw, 1920.

MLA (9th ed.) Citation

Lewis, Thomas. The Mechanism and Graphic Registration of the Heart Beat. Shaw, 1920.

Warning: These citations may not always be 100% accurate.