Ellis, H. Essays in War-Time: Further Studies in the Task of Social Hygiene.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रEllis, Havelock. Essays in War-Time: Further Studies in the Task of Social Hygiene.
एमएलए (9वां संस्करण) प्रशस्ति पत्रEllis, Havelock. Essays in War-Time: Further Studies in the Task of Social Hygiene.
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