APA (7th ed.) Citation

Crawford, M. H., Schiller, N. B., & Blengio, J. R. Ecocardiografía doppler.

Chicago Style (17th ed.) Citation

Crawford, Michael H., Nelson B. Schiller, and José Rafael Blengio. Ecocardiografía Doppler.

MLA (8th ed.) Citation

Crawford, Michael H., et al. Ecocardiografía Doppler.