Junco, Fernando J. Mecanografía moderna por Fernando J. Junco. - 5. ed. - [s.l.] Educational Publications Services 1977. - 203 p. ill. LCCN: 91082620 Subjects--Topical Terms: Typewriting Subjects--Geographic Terms: Puerto Rico LC Class. No.: Z49 / .J85 1977 Dewey Class. No.: 652.3/024