APA Edition Citation

Susan Weller & Kimball Romney A. (1987). Systematic data collection. Sage.

Chicago Edition Citation

Susan Weller and Kimball Romney A. Systematic Data Collection. California: Sage, 1987.

MLA Edition Citation

Susan Weller and Kimball Romney A. Systematic Data Collection. Sage, 1987.

Advarsel: Disse citationer er muligvist ikke 100% nøjagtige.