NATO Advanced Study Institute Johannes Gutenberg University & Falke, H. (1976). The continental Permian in central, west, and south Europe: Proceedings of the NATO Advanced Study Institute held at the Johannes Gutenberg University, Mainz, F.R.G., 23 September-4 October, 1975. D. Reidel Pub. Co..
Παραπομπή σε μορφή Chicago (17η εκδ.)NATO Advanced Study Institute Johannes Gutenberg University και Horst Falke. The Continental Permian in Central, West, and South Europe: Proceedings of the NATO Advanced Study Institute Held at the Johannes Gutenberg University, Mainz, F.R.G., 23 September-4 October, 1975. Dordrecht ; Boston: D. Reidel Pub. Co., 1976.
Παραπομπή σε μορφή MLA (8th εκδ.)NATO Advanced Study Institute Johannes Gutenberg University και Horst Falke. The Continental Permian in Central, West, and South Europe: Proceedings of the NATO Advanced Study Institute Held at the Johannes Gutenberg University, Mainz, F.R.G., 23 September-4 October, 1975. D. Reidel Pub. Co., 1976.
