1. AccuPyc 1330 Operator's Manual;Micromeritics Instrument Incorporation,1996
2. GeoPyc 1360 Operator's Manual V3.01;Micromeritics Instrument Incorporation,2001
3. Surface Area and Pore Size Determination;Allen,1997
4. Attaining envelope density reproducibility and accuracy with your GeoPyc;Micromeritics Instrument Incorporation,1997