Taquigrafía Gregg simplificada
By: [por] John Robert Gregg, Ildefonso Torreblanca, Otto H. Haelsig
Contributors: Torreblanca, Ildefonso.; Haelsig, Otto H.
Publisher: McGraw-Hill/Gregg Publishing Division
Published: 1953
Place of publication: New York
Language: spa
Translation of: Gregg shorthand simplified