APA引文

GUPTA A P. (1987). BUSINESS STATISTICS (6.). SULTAN CHAND AND SONS.

芝加哥风格引文

GUPTA A P. BUSINESS STATISTICS. 6. NEW DELHI: SULTAN CHAND AND SONS, 1987.

MLA引文

GUPTA A P. BUSINESS STATISTICS. 6. SULTAN CHAND AND SONS, 1987.