http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Kỹ thuật nuôi cá Trê - Lươn - Giun đất
Nội dung sách bao gồm các kỹ thuật, các phương pháp và các kỹ thuật nuôi cá trê, lươn và giun đất