APA引文

RYAN, W. T. Programmed Learning Aid For Principles Of Marketing William T Ryan. ricard D. Irwin.

Chicago Style (17th ed.) Citation

RYAN, William T. Programmed Learning Aid For Principles Of Marketing William T Ryan. ricard D. Irwin.

MLA引文

RYAN, William T. Programmed Learning Aid For Principles Of Marketing William T Ryan. ricard D. Irwin.

警告：这些引文格式不一定是100％准确.