Healey, J. F. (1999). Statistics: A tool for social research (5th ed.). Wadsworth Pub.
Chicago Style (17th ed.) CitationHealey, Joseph F. Statistics: A Tool for Social Research. 5th ed. Belmont, Calif: Wadsworth Pub, 1999.
ציטוט MLAHealey, Joseph F. Statistics: A Tool for Social Research. 5th ed. Wadsworth Pub, 1999.
אזהרה: ציטוטים אלה לעיתים לא מדויקים ב 100%.