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Peter K. Steinberg. "Biography (1956-1963)". A celebration, This is; www.sylviaplath.info. Archived from the original on 2007-02-28. Retrieved 2007-02-28.
"Sylvia Plath (1932-1963)". pseudonym Victoria Lucas, Books and Writers, www.kirjasto.sci.fi (2000). Archived from the original on 2008-08-27. Retrieved 2007-06-25.
Marie Griffin. "Sylvia Plath — Poet". "Great talent in great darkness", Bipolar Disorder (2007 About, Inc.). Archived from the original on 2012-01-18. Retrieved 2007-06-25.
Peter K. Steinberg. "Biography (1956-1963)". A celebration, This is; www.sylviaplath.info. Archived from the original on 2007-02-28. Retrieved 2007-02-28.