APA-viite (7. p.)
Petersen, W., & Gregory R.W. (1939). Dairy science: Its principles and practice in production, management, and processing. J.B.L.
Chicago-viite (17. p.)
Petersen, W.E, ja Gregory R.W. Dairy Science: Its Principles and Practice in Production, Management, and Processing. Chicago: J.B.L, 1939.
MLA-viite (9. p.)
Petersen, W.E, ja Gregory R.W. Dairy Science: Its Principles and Practice in Production, Management, and Processing. J.B.L, 1939.
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