GREEN (Paul E.)/ TULL (Donald S.)/ ALBAUM (Gerald), . (1998). Research for Marketing Decisions. New Delhi: Prentice Hall of India New Delhi.
GREEN (Paul E.)/ TULL (Donald S.)/ ALBAUM (Gerald), . 1998. Research for Marketing Decisions. New Delhi: Prentice Hall of India New Delhi.
GREEN (Paul E.)/ TULL (Donald S.)/ ALBAUM (Gerald), . Research for Marketing Decisions. New Delhi: Prentice Hall of India New Delhi. 1998.