RYAN CHRISTOPHER. (2002). HIGH PERFORMANCE INTERACTIVE MARKETING. VIVA BOOKS PVT.LTD.
芝加哥风格引文RYAN CHRISTOPHER. HIGH PERFORMANCE INTERACTIVE MARKETING. MUMBAI: VIVA BOOKS PVT.LTD, 2002.
MLA引文RYAN CHRISTOPHER. HIGH PERFORMANCE INTERACTIVE MARKETING. VIVA BOOKS PVT.LTD, 2002.
警告：这些引文格式不一定是100％准确.