Harrower, H. R. (1921). Essays on the internal secretions, 1920: Comprising the winning contributions, with some others, to the first "Harrower prize essay contest.". The Harrower Laboratory.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रHarrower, Henry R. Essays on the Internal Secretions, 1920: Comprising the Winning Contributions, with Some Others, to the First "Harrower Prize Essay Contest.". Glendale, Calif.: The Harrower Laboratory, 1921.
एमएलए (8वां संस्करण) प्रशस्ति पत्रHarrower, Henry R. Essays on the Internal Secretions, 1920: Comprising the Winning Contributions, with Some Others, to the First "Harrower Prize Essay Contest.". The Harrower Laboratory, 1921.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.