Button, E. (1988). Psychological problems in primary health care. C. Helm.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रButton, Eric. Psychological Problems in Primary Health Care. London: C. Helm, 1988.
एमएलए (8वां संस्करण) प्रशस्ति पत्रButton, Eric. Psychological Problems in Primary Health Care. C. Helm, 1988.
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