Blackburn, J., & Blackburn, J. (1996). Hardthrob: By John Blackburn. Eros Comix.
Cita Chicago (17th ed.)Blackburn, John, i John Blackburn. Hardthrob: By John Blackburn. Seattle, Wash.: Eros Comix, 1996.
Cita MLA (8th ed.)Blackburn, John, i John Blackburn. Hardthrob: By John Blackburn. Eros Comix, 1996.
Atenció: Aquestes cites poden no estar 100% correctes.