Nazeri, n. (2001). USG and your baby. PT Bhuana Ilmu Populer.
Cita Chicago (17th ed.)Nazeri, nikki. USG and Your Baby. PT Bhuana Ilmu Populer, 2001.
Cita MLA (9th ed.)Nazeri, nikki. USG and Your Baby. PT Bhuana Ilmu Populer, 2001.
Atenció: Aquestes cites poden no estar 100% correctes.