APA (7th ed.) Citation

Schamroth, L., & Schamroth, C. An introduction to electro cardiography (seven edition.).

Chicago Style (17th ed.) Citation

Schamroth, Leo, and Colin Schamroth. An Introduction to Electro Cardiography. seven edition.

MLA (8th ed.) Citation

Schamroth, Leo, and Colin Schamroth. An Introduction to Electro Cardiography. seven edition.

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