Gaya APA
PARKHURST, C, C. (1961).
BUSINESS COMMUNICATION FOR BETTER HUMAN RELATIONS .
Englewood Cliffs, N J.:
PRENTICE HALL.
Gaya MLA
PARKHURST, C., C..
"BUSINESS COMMUNICATION FOR BETTER HUMAN RELATIONS".
Englewood Cliffs, N J.:
PRENTICE HALL,
1961.
Textbook.