Author:

Clendening,J.A.;Gillespie,W.H.

Year:

1964

Title:

Characteristic small spores of the Pittsburgh Coal in West Virginia and Pennsylvania.

Reference:

Clendening,J.A. et al. (1964) Characteristic small spores of the Pittsburgh Coal in West Virginia and Pennsylvania. Proceedings of the West Virginia Academy of Science Vol. 35 P. 141- 150

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