Gregg Publishing Company. (1940). A course of study for teaching Gregg shorthand by the functional method: Elementary and advanced. The Gregg Publishing Co..
Chicago-viite (17. p.)Gregg Publishing Company. A Course of Study for Teaching Gregg Shorthand by the Functional Method: Elementary and Advanced. New York : Chicago [etc.]: The Gregg Publishing Co., 1940.
MLA-viite (8. p.)Gregg Publishing Company. A Course of Study for Teaching Gregg Shorthand by the Functional Method: Elementary and Advanced. The Gregg Publishing Co., 1940.
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