APA (7th ed.) Citation

Constant, J. (1976). Electronictrocardiogramafia. s.n.

Chicago Style (17th ed.) Citation

Constant, J. Electronictrocardiogramafia. Barcelona: s.n, 1976.

MLA (9th ed.) Citation

Constant, J. Electronictrocardiogramafia. s.n, 1976.