Cita APA (7th ed.)
VENKATESH, S. THE THREE-TIER MODEL: HOW HELPING OCCURS IN URBAN, POOR COMMUNITIES.
Cita Chicago (17th ed.)
VENKATESH, S.A. THE THREE-TIER MODEL: HOW HELPING OCCURS IN URBAN, POOR COMMUNITIES.
Cita MLA (9th ed.)
VENKATESH, S.A. THE THREE-TIER MODEL: HOW HELPING OCCURS IN URBAN, POOR COMMUNITIES.
Atenció: Aquestes cites poden no estar 100% correctes.