Bagong-buhay, o mga katutubong karapatan ng mga manggagawa sa harap ng wagas na matwid [microform] - Ronquillo, Carlos Valdez 1877-1941 (Quezon City Photoduplication Service. University of the Philippines Library, 1975)
Microfilmed with 28 other titles.
Originally published by Limbagang "Tagumpay", Manila, 1910.
Keywords: Labor and laboring classes -- Philippines