@article{31543,
      author       = "Lawrence, J. and Sawyerr, F. and FIG and XI. Kongres FIG,
                      Řím 1965",
      title        = "Surveing and Mapping Practices. Useful in Liberia and other
                      repidly developing countries  ",
      year         = "1965",
      note         = "1 seš.",
}