Roberto, D. N. Do we prioritize blue ocean marketing over red ocean marketing? Philippine Daily Inquirer.
芝加哥风格引文Roberto, Dr. Ned. "Do We Prioritize Blue Ocean Marketing over Red Ocean Marketing?" Philippine Daily Inquirer .
MLA引文Roberto, Dr. Ned. "Do We Prioritize Blue Ocean Marketing over Red Ocean Marketing?" Philippine Daily Inquirer, .
警告：这些引文格式不一定是100％准确.