Recent marine sediments : a symposium / edited by Parker D. Trask ... prepared under the direction of a subcommittee of the Committee on sedimentation of the Division of geology and geography of the National research council, Washington, D.C. ...
"The Committee on sedimentation, under the direction of W. H. Twenhofel, has already sponsored a Treatise on sedimentation ... The present symposium is designed as a supplement to this treatise."--Pref.