APA (7th ed.) Citation

Fiehring, H., & Giegler, I. (1969). Elektrokardiographie in der Praxis.

Chicago Style (17th ed.) Citation

Fiehring, H., and I. Giegler. Elektrokardiographie in Der Praxis. Jena, 1969.

MLA (8th ed.) Citation

Fiehring, H., and I. Giegler. Elektrokardiographie in Der Praxis. 1969.

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