1. Species difference in the composition of milk with special reference to the Northern fur seal;Ashworth;J. Dairy Sci.,1966
2. Ricerche sulla maturazione del formaggio di capra;Cattaneo;Ind. Latte,1978
3. Code of Federal Regulations. 1986. Title 21 Food and drugs, subchapter B, Food for human consumption. Pan 133 Cheeses and related cheese products, Subpart A General provisions, Sect. 133.3 Definitions.
4. Code of Federal Regulations. 1986. Title 21 Food and drugs, subchapter B, Food for human consumption, Pan 133 Cheeses and related cheese products, Subpart B Requirements for specific standardized cheese and related products, Sect. 133.102-133.196.
5. Corrao, di A., A. M. Gattuso, G. Fazio, and V. Cilluffo. 1974. Composizione E Caratteristiche Delia Sostanza Grassa Di Formaggi Pecorini Di Produzione Siciliana. Ind. Agrar. 12:7.