1. Estudio comparativo entre el sulfato neutro de quinina y los dos bromhidratos de la misma base Author(s): Diaz Lozano, Jesus, author Publication: México : Imprenta de Ireneo Paz, 1880 Subject(s): Quinine -- chemistry
2. On the detection of small quantities of cinchonidine in sulphate of quinine Author(s): Schäfer, Louis, author Publication: New York : John M. Burnet's Sons, printers, [1887?] Subject(s): Quinine -- chemistryCinchona Alkaloids -- isolation & purification