MLA

Weller, Susan C, and A. Kimball Romney. Systematic Data Collection. Newbury Park, Calif.: Sage Publications, 1988.

APA

Weller, S. C, & Romney, A. Kimball. (1988). Systematic data collection. Newbury Park, Calif.: Sage Publications.

Chicago

Weller, Susan C., and A. Kimball Romney. Systematic Data Collection. Newbury Park, Calif.: Sage Publications, 1988.