Books by Hamst, Olphar

Handbook of fictitious names : being a guide to authors, chiefly in the lighter literature of the XIXth century, who have written under assumed names, and to literary forgers, impostors, plagiarists, and imitators

Aggravating ladies : Being a list of works published under the pseudonym of "a lady," with preliminary suggestions on the art of describing books bibliographically

A martyr to bibliography : A notice of the life and works of Joseph-Marie Quérard, bibliographer. (French)