Preface

W. D. Keller and A. F. Frederickson
Clay Minerals Committee, National Academy of Sciences—National Research Council.

Clays and Clay Minerals; 1958 v. 7; no. 1; p. ix; DOI: 10.1346/CCMN.1958.0070101
© 1958, The Clay Minerals Society
Clay Minerals Society (www.clays.org)