APA (7th ed.) Citation

Spector, P. E. (1981). Research designs. Sage.

Chicago Style (17th ed.) Citation

Spector, Paul E. Research Designs. Newbury Park, Calif: Sage, 1981.

MLA (9th ed.) Citation

Spector, Paul E. Research Designs. Sage, 1981.

Warning: These citations may not always be 100% accurate.