Helle, O. (1971). The effect on sheep parasites of grazing in alternate years by sheep and cattle: A comparsion with set-stocking, and the use of anthelmintics with these grazing managements. Universitetsforlagets Trykningssentral.
Chicago Style (17th ed.) CitationHelle, Oddvar. The Effect on Sheep Parasites of Grazing in Alternate Years by Sheep and Cattle: A Comparsion with Set-stocking, and the Use of Anthelmintics with These Grazing Managements. Oslo: Universitetsforlagets Trykningssentral, 1971.
MLA (9th ed.) CitationHelle, Oddvar. The Effect on Sheep Parasites of Grazing in Alternate Years by Sheep and Cattle: A Comparsion with Set-stocking, and the Use of Anthelmintics with These Grazing Managements. Universitetsforlagets Trykningssentral, 1971.
Warning: These citations may not always be 100% accurate.