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- [1] PETROGRAPHIC CLASSIFICATION OF ARGILLACEOUS SEDIMENTARY AND LOW-GRADE METAMORPHIC ROCKS IN SUBSURFACE AAPG BULLETIN-AMERICAN ASSOCIATION OF PETROLEUM GEOLOGISTS, 1953, 37 (03): : 560 - 565
- [5] TO THE QUESTION ON CLASSIFICATION OF ORGANIC-MATTER IN SEDIMENTARY-ROCKS IZVESTIYA AKADEMII NAUK SSSR SERIYA GEOLOGICHESKAYA, 1981, (02): : 131 - 142
- [6] A PREFACE TO THE CLASSIFICATION OF THE SEDIMENTARY ROCKS JOURNAL OF GEOLOGY, 1948, 56 (02): : 112 - 117