Singh . Prabhkar & B.S.Asati. (2020). Seed Production Technology of Vegetables (الطبعة الثانية.). Daya Publishhing House.
Chicago-referens (17:e uppl.)Singh . Prabhkar och B.S.Asati. Seed Production Technology of Vegetables. الطبعة الثانية. New Delhi: Daya Publishhing House, 2020.
MLA-referens (9:e uppl.)Singh . Prabhkar och B.S.Asati. Seed Production Technology of Vegetables. الطبعة الثانية. Daya Publishhing House, 2020.