Platt, J. I., & Challinor, J. (1956). Simple geological structures: A series of notes and map exercises ([3rd ed.].). London: Thomas Murby & Co..
Παραπομπή Chicago StylePlatt, John I., and John Challinor. Simple Geological Structures: A Series of Notes and Map Exercises. [3rd ed.]. London: Thomas Murby & Co., 1956.
Παραπομπή MLAPlatt, John I., and John Challinor. Simple Geological Structures: A Series of Notes and Map Exercises. [3rd ed.]. London: Thomas Murby & Co., 1956.
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