Áy Zoltán. (2008). Viral diseases on wheat: Diagnosis and protection.
Chicago Style (17th ed.) CitationÁy Zoltán. Viral Diseases on Wheat: Diagnosis and Protection. 2008.
MLA idézésÁy Zoltán. Viral Diseases on Wheat: Diagnosis and Protection. 2008.
Figyelem: ezek az hivatkozások nem 100%-ban pontosak..