Center for Health Statistics, California Department of Health Services, Sacramento, California. "California Birth Index 1905–1995". State of California. Diarsipkan dari versi asli tanggal 2013-11-01. Diakses tanggal 2010-02-17.Pemeliharaan CS1: Banyak nama: authors list (link)
Center for Health Statistics, California Department of Health Services, Sacramento, California. "California Birth Index 1905–1995". State of California. Diarsipkan dari versi asli tanggal 2013-11-01. Diakses tanggal 2010-02-17.Pemeliharaan CS1: Banyak nama: authors list (link)