"Hamlet." Shakespeare for Students: Critical Interpretations of Shakespeare's Plays and Poetry. Ed. Anne Marie Hacht. 2nd ed. Vol. 1. Detroit: Gale, 2007. 193-225. Gale Virtual Reference Library. Web. 26 May 2016. Extensive overview.
"Hamlet." Literature and Its Times: Profiles of 300 Notable Literary Works and the Historical Events that Influenced Them. Ed. Joyce Moss and George Wilson. Vol. 1: Ancient Times to the American and French Revolutions (Prehistory-1790s). Detroit: Gale, 1997. 136-143. Gale Virtual Reference Library. Web. 26 May 2016.