The Rokdoc package. Description and listing of a library of routines in Fortran IV for statistical analysis, summary and display of data concerning sedimentary rocks /
University Extension College, afterwards University College, afterwards University of Reading (Reading). - Sedimentology Research Laboratory.
Loudon, T. Victor.
Reading, 
1967.
Previously issued as Report No. 5 on Computation in sedimentology, published by Geology Department.