La Solidaridad - Ganzon, Guadalupe Fores; Lopez Jaena, Graciano 1851-1896.; Pilar, Marcelo Hilario del 1850-1896. (Quezon City University of the Philippines Press, 1967)
The original was issued biweekly in Barcelona and Madrid from Feb. 15, 1889 to Nov. 1895, and edited by G. Lopez Jaena and M.H. del Pilar.
Keywords: Philippines -- History -- Periodicals; Propaganda, Filipino