. . "Chemical and Technical Stenography. Technical Gregg stenography with special outlines and textual matter for the fields of chemistry and metallurgy, etc"@en . "Chemical and technical stenography : technical Gregg stenography with special outlines and textual matters for the fields of chemistry and metallurgy"@en . "Terminology"@en . . . . . . . . . "Chemical and technical stenography : technical Gregg stenography with special outlines and textual matter for the fields of chemistry and metallurgy" . "Chemical and technical stenography; technical Gregg stenography with special outlines and textual matter for the fields of chemistry and metallurgy"@en . . . . .