APA (7th ed.) Citation

Spector, P. E. (1986). Research designs (6. print.). Sage.

Chicago Style (17th ed.) Citation

Spector, Paul E. Research Designs. 6. print. Beverly Hills u. a: Sage, 1986.

MLA (9th ed.) Citation

Spector, Paul E. Research Designs. 6. print. Sage, 1986.