Susan Weller & Kimball Romney A. (1987). Systematic data collection. Sage.
Chicago Edition CitationSusan Weller and Kimball Romney A. Systematic Data Collection. California: Sage, 1987.
MLA Edition CitationSusan Weller and Kimball Romney A. Systematic Data Collection. Sage, 1987.
Warning: These citations may not always be 100% accurate.