Mallet, L. d. P., Casement, R., & Grey of Fallodon, E. G. (1912). Letter from Louis Mallet, on behalf of Sir Edward Grey, to Roger Casement regarding Casement writing a book and informing him that he is not permitted to write about Brazil, as he holds an official appointment there, and also advises he avoid writing about Peru.

Mallet, Louis du Pan, et al. Letter from Louis Mallet, on Behalf of Sir Edward Grey, to Roger Casement Regarding Casement Writing a Book and Informing Him That He Is Not Permitted to Write About Brazil, as He Holds an Official Appointment There, and Also Advises He Avoid Writing About Peru. 1912.