1. A practical guide to behavioral research : tools and techniques Author/Creator: Sommer, Barbara Baker, 1938- Publication/Creation: New York : Oxford University Press, 1991 Resource Type: Book Edition: 3rd edition. Access & Availability: Loading
2. A practical guide to behavioral research : tools and techniques Author/Creator: Sommer, Robert Publication/Creation: New York : Oxford University Press, 1986 Resource Type: Book Edition: 2nd edition. Access & Availability: Loading