George Mathen. (1991). Mrugasamrakshana thatvangal: Principles of animal husbandry. State institute of languages.
استشهاد بنمط شيكاغوGeorge Mathen. Mrugasamrakshana Thatvangal: Principles of Animal Husbandry. Thiruvananthapuram: State institute of languages, 1991.
MLA استشهادGeorge Mathen. Mrugasamrakshana Thatvangal: Principles of Animal Husbandry. State institute of languages, 1991.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.