On the mechanism of the geological undulation phenomena in general and of folding in particular and their application to the problem of the "Roots of mountains" theory,
by Dr. S.W. Tromp.
- Leiden. A.W. Sijthoff's uitgeversmaatschappij N.V., 1937.
- 3p. l., 184 p. incl. illus., maps. diagrs. 25 cm.