APA
Charlesworth G., . (1973). Personal typewriting. Pitman Publishing, London: .
Chicago
Charlesworth Grace, . 1973. Personal typewriting. Pitman Publishing, London: .
Harvard
Charlesworth G., . (1973). Personal typewriting. Pitman Publishing, London: .
MLA
Charlesworth Grace, . Personal typewriting. Pitman Publishing, London: . 1973.