APA (7th ed.) Citation

Hill, E. (2011). Girl inventor: Erin Hill & her psychedlic harp. [publisher not identified].

Chicago Style (17th ed.) Citation

Hill, Erin. Girl Inventor: Erin Hill & Her Psychedlic Harp. [United States?]: [publisher not identified], 2011.

MLA (9th ed.) Citation

Hill, Erin. Girl Inventor: Erin Hill & Her Psychedlic Harp. [publisher not identified], 2011.