DOI: https://doi.org/10.3402/tellusa.v3i2.8621 | Journal eISSN: 3035-9554
Language: English
Page range: 75 - 77
Published on: Jan 1, 1951
Published by: Stockholm University Press
In partnership with: Paradigm Publishing Services
© 1951 J. van Mieghem, published by Stockholm University Press
This work is licensed under the Creative Commons Attribution 4.0 License.