518,464 LLOYD ALLAN C. /red./ Advances in environmental science and technology. Ed. fcy James N. Pitts, jr. and Robert L. Metcalf. Associate ed. Alan C. Lloyd. New York 1974 A Wiley-Interscience Publication. John Wiley and Sons 8° Vol. 4. s. IX, nlli. 1, 382, nlfc. 1,ilustr v.