Craig, A., Jagor, F., Comyn, T. d., Wilkes, C., & Virchow, R. L. K. (1976). The former Philippines thru foreign eyes [microform]. Photoduplication Service, University of the Philippines Library.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रCraig, Austin, Fedor Jagor, Tomas de Comyn, Charles Wilkes, और Rudolf Ludwig Karl Virchow. The Former Philippines Thru Foreign Eyes [microform]. Quezon City: Photoduplication Service, University of the Philippines Library, 1976.
एमएलए (9वां संस्करण) प्रशस्ति पत्रCraig, Austin, et al. The Former Philippines Thru Foreign Eyes [microform]. Photoduplication Service, University of the Philippines Library, 1976.
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