Philippine Library Association & Philippine Library Association Biennial Convention, Cebu City, 1969. (1969). Librarians face the challenges of the day: Papers of the 1969 biennial convention of the Philippine Library Association. [s.n.].
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Philippine Library Association و Cebu City Philippine Library Association Biennial Convention. Librarians Face the Challenges of the Day: Papers of the 1969 Biennial Convention of the Philippine Library Association. Manila: [s.n.], 1969.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Philippine Library Association و Cebu City Philippine Library Association Biennial Convention. Librarians Face the Challenges of the Day: Papers of the 1969 Biennial Convention of the Philippine Library Association. [s.n.], 1969.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.