APA

Leslie L. A., I. Zoubek C. E. I. H. R. J., .Gregg shorthand simplified for colleges. New York: Editorial Gregg.

Chicago

Leslie Louis A, I. Zoubek Charles E II Hosler Russel J, .Gregg shorthand simplified for colleges. New York: Editorial Gregg.

Harvard

Leslie L. A., I. Zoubek C. E. I. H. R. J., .Gregg shorthand simplified for colleges. New York: Editorial Gregg.

MLA

Leslie Louis A, I. Zoubek Charles E II Hosler Russel J, .New York: Editorial Gregg. .