By Parrilla Bonilla, Antulio,.
Río Piedras, Puerto Rico : Editorial Juan XXIII , 1975 .
169 p., [12] leaves of plates 20 cm..
8485215001

By Parrilla Bonilla, Antulio,.
Río Piedras, P.R. Editorial Juan XXIII 1974 .
180 p. , A collection of articles published between 1972 and 1974 in the weekly "Claridad" of Río Piedras, in the daily "El Nuevo Día" of Ponce and in other periodicals.

By Parrilla Bonilla, Antulio,.
Río Piedras, P. R. Editorial Juan XXIII 1974 .
180 [2] p.

By Parrilla Bonilla, Antulio,.
Río Piedras, P.R. Editorial Juan XXIII 1974 .
180 p. , A collection of articles published between 1972 and 1974 in the weekly "Claridad" of Río Piedras, in the daily "El Nuevo Día" of Ponce and in other periodicals.