Ashbee, H. S., & Legman, G. (1962). Bibliography of prohibited books: Bio- biblio- icono- graphical and critical notes on curious, uncommon and erotic books / by Pisanus Fraxi [Pseud., d.i.: Henry Spencer Ashbee]. Introduction by G. Legman (Reprint der Ausgabe London 1877.). Brussel.

Ashbee, Henry Spencer, and Gershom Legman. Bibliography of Prohibited Books: Bio- Biblio- Icono- Graphical and Critical Notes on Curious, Uncommon and Erotic Books / by Pisanus Fraxi [Pseud., D.i.: Henry Spencer Ashbee]. Introduction by G. Legman. Reprint der Ausgabe London 1877. New York: Brussel, 1962.

Ashbee, Henry Spencer, and Gershom Legman. Bibliography of Prohibited Books: Bio- Biblio- Icono- Graphical and Critical Notes on Curious, Uncommon and Erotic Books / by Pisanus Fraxi [Pseud., D.i.: Henry Spencer Ashbee]. Introduction by G. Legman. Reprint der Ausgabe London 1877. Brussel, 1962.