Hellwig, Z. (1963). Linear Regression and its Application to Economics. ELSEVIER.
芝加哥风格引文Hellwig, Zdzisław. Linear Regression and Its Application to Economics. ELSEVIER, 1963.
MLA引文Hellwig, Zdzisław. Linear Regression and Its Application to Economics. ELSEVIER, 1963.
警告：这些引文格式不一定是100％准确.