APA (7th ed.) Citation

Kowarzykowie, H., & Kowarzykowie, Z. (1961). Spatial vectorcardiography. Pergamon Press.

Chicago Style (17th ed.) Citation

Kowarzykowie, Hugon, and Zofia Kowarzykowie. Spatial Vectorcardiography. Oxford ; New York: Pergamon Press, 1961.

MLA (9th ed.) Citation

Kowarzykowie, Hugon, and Zofia Kowarzykowie. Spatial Vectorcardiography. Pergamon Press, 1961.

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