Econometric techniques and problems / C. E. V. Leser. Leser, C. E. V. (Conrad Emanuel Victor), 1915- Econometrics. HB139 .L5 1974 330.18 LEE Includes index. Bibliography: p. 137-141. London : Griffin, 1974. 1974. 1974 Text viii, 144 p. ; eng Griffin's statistical monographs and courses ; no. 20