Steve was no engineer but his name is on 300 US patents. IN News. Philippine Daily Inquirer.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)"Steve Was No Engineer but His Name Is on 300 US Patents. IN News." Philippine Daily Inquirer .
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)"Steve Was No Engineer but His Name Is on 300 US Patents. IN News." Philippine Daily Inquirer, .
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.