PETER ALLEN, . (1983). MARKTING TECHNIQUES FOR ANALYSIS AND CONTROL. DELHI: MACMILLAN REFERENCE LTD.
PETER ALLEN, . 1983. MARKTING TECHNIQUES FOR ANALYSIS AND CONTROL. DELHI: MACMILLAN REFERENCE LTD.
PETER ALLEN, . MARKTING TECHNIQUES FOR ANALYSIS AND CONTROL. DELHI: MACMILLAN REFERENCE LTD. 1983.