P-ISSN 0008-0845
E-ISSN 2160-8091
Vol. 15, Issue 4, 1961April 01, 1961 PDT 
ccby-nc-nd-4.0 
Measuring movements of soil amendments made possible by new technique 
Measuring movements of soil amendments made possible by new technique
D Nielsen, J Biggar, 
Nielsen, D, and J Biggar. 1961. “Measuring Movements of Soil Amendments Made Possible by New Technique.” California Agriculture 15 (4): 7–8.