Rao, V. L. (1967). International system of units. Institute of Mathematical Sciences.
Chicago Edition CitationRao, V.V. Lakshmana. International System of Units. Madras: Institute of Mathematical Sciences, 1967.
ציטוט MLARao, V.V. Lakshmana. International System of Units. Institute of Mathematical Sciences, 1967.
אזהרה: ציטוטים אלה לעיתים לא מדויקים ב 100%.