Không rõ. (2009). Applied Statistics in Business and Economics. NOTNXB.
Chicago ZitierstilKhông rõ. Applied Statistics in Business and Economics. NOTNXB, 2009.
MLA ZitierstilKhông rõ. Applied Statistics in Business and Economics. NOTNXB, 2009.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.