Woodland, B. G., & Richardson, C. K. (1975). Time factors of differentially preserved wood in two calcitic concretions in Pennsylvanian black shale from Indiana.
Chicago Style (17th ed.) CitationWoodland, Bertram G., and Catherine K. Richardson. Time Factors of Differentially Preserved Wood in Two Calcitic Concretions in Pennsylvanian Black Shale from Indiana. Chicago, Ill, 1975.
MLA (9th ed.) CitationWoodland, Bertram G., and Catherine K. Richardson. Time Factors of Differentially Preserved Wood in Two Calcitic Concretions in Pennsylvanian Black Shale from Indiana. 1975.
Warning: These citations may not always be 100% accurate.