Cita APA (7th ed.)
Richard, S. (1990). Ultrasound: Eyewitness to the earliest days of life. Sound wave images.
Cita Chicago (17th ed.)
Richard, Shari. Ultrasound: Eyewitness to the Earliest Days of Life. Harness: Sound wave images, 1990.
Cita MLA (9th ed.)
Richard, Shari. Ultrasound: Eyewitness to the Earliest Days of Life. Sound wave images, 1990.
Atenció: Aquestes cites poden no estar 100% correctes.