DUFFY PHILIP G. (1994). BUSINESS TO BUSINESS MARKETING. VISION BOOKS PVT. LTD.
芝加哥风格引文DUFFY PHILIP G. BUSINESS TO BUSINESS MARKETING. NEW DELHI: VISION BOOKS PVT. LTD, 1994.
MLA引文DUFFY PHILIP G. BUSINESS TO BUSINESS MARKETING. VISION BOOKS PVT. LTD, 1994.
警告：这些引文格式不一定是100％准确.