Lehmann, D. R., & Gupta, S. (1998). Marketing research. Addison-Wesley.
Chicagoスタイル(17版)引用形式Lehmann, Donald R., , Sunil Gupta. Marketing Research. Massachusetts: Addison-Wesley, 1998.
MLA(9版)引用形式Lehmann, Donald R., , Sunil Gupta. Marketing Research. Addison-Wesley, 1998.
警告: この引用は必ずしも正確ではありません.