In that I'm reading a student's draft thesis on clothing and images of self and others, here's some references:
O'Cass (2001) proposed that fashion clothing says how important an individual is, how much status the individual has, and what the individual is like. Johnson's et al. (2002) research determined that people do form impressions of others based on their dress at least some of the time. They also stated that their participants felt that other people used their dress cues to form impressions of them.
O'Cass, A. (2001). Consumer self-monitoring, materialism, and involvement in fashion
\tclothing. Australasian Marketing Journal, 9(1), 46-60.
O'Cass, A. (2004). Fashion clothing consumption: antecedents and consequences of fashion
\tclothing involvement. European Journal of Marketing, 38(7), 869-882.
Johnson, K., Schofield, N.A., & Yurchisin, J. (2002). Appearance and dress as a source of
information: A qualitative approach to data collection. Clothing and Textiles Research Journal, 20(3), 125-137.
Sontag, M.S., & Lee, J. (2004). Proximity of clothing to self scale. Clothing and Textiles
\tResearch Journal, 22(4), 161-177.