Gaya APA
Lessenberry, D. D.. (1952).
Twenty Century Typewriting [Complete Course] (Cet. 1.--).
S.l.:
South-Western.
Gaya Chicago
Lessenberry, D. D..
Twenty Century Typewriting [Complete Course].
Cet. 1.--
S.l.:
South-Western,
1952.
Text.
Gaya MLA
Lessenberry, D. D..
Twenty Century Typewriting [Complete Course].
Cet. 1.--
S.l.:
South-Western,
1952.
Text.
Gaya Turabian
Lessenberry, D. D..
Twenty Century Typewriting [Complete Course].
Cet. 1.--
S.l.:
South-Western,
1952.
Print.