Gaya APA
Zelazny, G. (1985).
Say it with charts : the executive`s guide to successful presentation .
Homewood,Illinois:
Dow Jones-Irwin.
Gaya MLA
Zelazny, Gene.
"Say it with charts : the executive`s guide to successful presentation".
Homewood,Illinois:
Dow Jones-Irwin,
1985.
Text.