Gaya APA
Lloyd, A, C., Winger, F, E. (1987).
Gregg Typing 2: Keyboard And Processing Documents, Advanced Course .
San Fransisco:
McGraw Hill.
Gaya MLA
Lloyd, Alan, C.., Winger, Fred, E.
"Gregg Typing 2: Keyboard And Processing Documents, Advanced Course".
San Fransisco:
McGraw Hill,
1987.
Text.