Caves & Roberts. (1975). Regulating the product: Quality and variety. Ballinger.
Chicago Edition CitationCaves and Roberts. Regulating the Product: Quality and Variety. USA: Ballinger, 1975.
ציטוט MLACaves and Roberts. Regulating the Product: Quality and Variety. Ballinger, 1975.
אזהרה: ציטוטים אלה לעיתים לא מדויקים ב 100%.