APA ציטוט
Kesling, R. V., & Meyer, D. L. (1963). The crinoid Opsiocrinus Mariae Kier in the Bell Shale of Michigan.
Chicago Style (17th ed.) Citation
Kesling, Robert V., and David L. Meyer. The Crinoid Opsiocrinus Mariae Kier in the Bell Shale of Michigan. 1963.
ציטוט MLA
Kesling, Robert V., and David L. Meyer. The Crinoid Opsiocrinus Mariae Kier in the Bell Shale of Michigan. 1963.
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