Columbia subject headings:
Business communication.
Business etiquette--Psychological aspects.
Interpersonal communication.
Harvard subject headings:
Courtesy.
Interpersonal communication
Psycholinguistics.
Sociolinguistics.
Speech acts (Linguistics)
Princeton subject headings:
Courtesy.
Interpersonal communication.
Psycholinguistics.
Sociolinguistics.
Speech acts (Linguistics)