Foster, D. W. (1972). Planning for products and markets. Longman.
Chicago Edition CitationFoster, Douglas W. Planning for Products and Markets. London: Longman, 1972.
ציטוט MLAFoster, Douglas W. Planning for Products and Markets. Longman, 1972.
אזהרה: ציטוטים אלה לעיתים לא מדויקים ב 100%.