Aprieto, P. N. (1984). Signs of the times and other thoughts, reminders and miscellany. JMC Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रAprieto, Pacifico N. Signs of the Times and Other Thoughts, Reminders and Miscellany. Quezon City: JMC Press, 1984.
एमएलए (9वां संस्करण) प्रशस्ति पत्रAprieto, Pacifico N. Signs of the Times and Other Thoughts, Reminders and Miscellany. JMC Press, 1984.
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