Morgan,, David L. Planning Focus group / David L. Morgan, Alice U. Scannell

Planning Focus group / David L. Morgan, Alice U. Scannell . - Thousand Oaks : Sage Publications, cop. 1998 . - XVI, 139 p. 26 cm . - (Focus Group Kit; 2))
0-7619-0817-X (Brochado)

303.62