(1992). Scientific research institutes in Pakistan. Library of Congress Office ; Library of Congress Photoduplication Service.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रScientific Research Institutes in Pakistan. New Delhi : Washington, D.C.: Library of Congress Office ; Library of Congress Photoduplication Service, 1992.
एमएलए (8वां संस्करण) प्रशस्ति पत्रScientific Research Institutes in Pakistan. Library of Congress Office ; Library of Congress Photoduplication Service, 1992.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.