Ian, McCorquodale: Welcome to the romantic world of Barbara Cartland.BarbaraCartland.com. 2017. Arkistoitu 12.8.2017. ”During her long career, my mother, Barbara Cartland wrote an incredible 723 books, which were translated into 38 languages, making her the most prolific author of the 20th Century.” Viitattu 25.8.2017. (englanniksi)
books.google.com
Kjetsaa, Geir: Fyodor Dostoyevsky: A Writer's Life. (Esipuhe) Fawcett Columbine, 1989. Teoksen verkkoversio. (englanniksi)
daniellesteel.com
About Danielle SteelDanielle Steelin virallinen verkkosivusto. ”She is published in 69 countries and 43 languages.” Viitattu 12.8.2017. (englanniksi)
UNESCO Statistics: Index Translationum - "TOP 50" AuthorUnescon virallinen verkkosivusto. United Nations Educational, Scientific and Cultural Organization (UNESCO). Viitattu 25.8.2017. (englanniksi)
web.archive.org
Ian, McCorquodale: Welcome to the romantic world of Barbara Cartland.BarbaraCartland.com. 2017. Arkistoitu 12.8.2017. ”During her long career, my mother, Barbara Cartland wrote an incredible 723 books, which were translated into 38 languages, making her the most prolific author of the 20th Century.” Viitattu 25.8.2017. (englanniksi)