Earth materials investigation manual :
a manual for the field investigation and sampling of earth materials for foundation and construction purposes /
United States, Department of the Interior, Bureau of Reclamation.
APA Citation
United States. Bureau of Reclamation. (1947). Earth materials investigation manual: a manual for the field investigation and sampling of earth materials for foundation and construction purposes. Denver: Branch of Design and Construction.
MLA Citation
United States. Bureau of Reclamation. Earth Materials Investigation Manual: a Manual for the Field Investigation And Sampling of Earth Materials for Foundation And Construction Purposes. Denver: Branch of Design and Construction, 1947.
Warning: These citations may not always be complete (especially for serials).