Gopinathan Nayar, P. R. (1980). Keralattile Vidyabhyasam. Kerala Sastra Sahitya Parishad.
シカゴスタイル引用形Gopinathan Nayar, P R. Keralattile Vidyabhyasam. Trivandrum: Kerala Sastra Sahitya Parishad, 1980.
MLA引用形式Gopinathan Nayar, P R. Keralattile Vidyabhyasam. Kerala Sastra Sahitya Parishad, 1980.
警告: この引用は必ずしも正確ではありません.