APA (7 वां संस्करण) प्रशस्ति पत्र

Ables, A. (1989). Trade with socialist countries: An evaluation of past-experiences and recommendations for the future. Asian Studies.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Ables, Adelardo. "Trade with Socialist Countries: An Evaluation of Past-experiences and Recommendations for the Future." Asian Studies 1989.

एमएलए (9वां संस्करण) प्रशस्ति पत्र

Ables, Adelardo. "Trade with Socialist Countries: An Evaluation of Past-experiences and Recommendations for the Future." Asian Studies, 1989.