Beri G C. (2013). Marketing Research (5th.). McGraw Hill.
芝加哥风格引文Beri G C. Marketing Research. 5th. New Delhi: McGraw Hill, 2013.
MLA引文Beri G C. Marketing Research. 5th. McGraw Hill, 2013.
警告:这些引文格式不一定是100%准确.
Beri G C. (2013). Marketing Research (5th.). McGraw Hill.
芝加哥风格引文Beri G C. Marketing Research. 5th. New Delhi: McGraw Hill, 2013.
MLA引文Beri G C. Marketing Research. 5th. McGraw Hill, 2013.