* Dietrich, R. V., 2002, Carbonate Concretions -- A Bibliography, The Wayback Machine.
* Dietrich, R. V., 2002, Carbonate Concretions -- A Bibliography, The Wayback Machine.
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* Dietrich, R. V., 2002, Carbonate Concretions -- A Bibliography, The Wayback Machine.
* Dietrich, R. V., 2002, Carbonate Concretions -- A Bibliography, The Wayback Machine.
0.003 seconds.