English, P., L., M., H., Z., A., I., P., Leopold, V.(1991).Metabolic disorders and their prevention in farm animals / editor, Leopold Vrzgula .New York:.
Gaya MLA
English, Poruchy, Latkoveho, Metabolizm, Hospodarskych, Zvierat, At, Ich, Prevencia., Vrzgula, Leopold."Metabolic disorders and their prevention in farm animals / editor, Leopold Vrzgula".New York:,1991.Textbook.