Knock, knock, who's there?
Subtitle: want to buy a home security system? beware of home alarm sales scams
Series: FTC facts for consumers; FTC facts for consumers
Publisher: Federal Trade Commission
Published: 2011
Place of publication: Washington, D.C.]
Language: eng
Format: [electronic resource] :
Subjects: Consumer protection; Burglar alarms
Notes: Title from title screen (viewed on July 29, 2011).

"March 2011."