APA (7 वां संस्करण) प्रशस्ति पत्र

Various; Higley, W. K. Birds and Nature Vol. 11 No. 5 [May 1902] Illustrated by Color Photography.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Various; Higley, William Kerr. Birds and Nature Vol. 11 No. 5 [May 1902] Illustrated by Color Photography.

एमएलए (9वां संस्करण) प्रशस्ति पत्र

Various; Higley, William Kerr. Birds and Nature Vol. 11 No. 5 [May 1902] Illustrated by Color Photography.

चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.