APA

Dowman I. J., Royal Institution of Chartered Surveyors & UK National Group for Communication in Surveying and Photogrammetry. (1974). Directory of research and development activities in the United Kingdom in the fields of land Survey, geodesy, photogrammetry and hydrographic surveying. London: RICS.

Chicago

Dowman I J, Royal Institution of Chartered Surveyors and UK National Group for Communication in Surveying and Photogrammetry. 1974. Directory of research and development activities in the United Kingdom in the fields of land Survey, geodesy, photogrammetry and hydrographic surveying. London: RICS.

Harvard

Dowman I. J., Royal Institution of Chartered Surveyors and UK National Group for Communication in Surveying and Photogrammetry. (1974). Directory of research and development activities in the United Kingdom in the fields of land Survey, geodesy, photogrammetry and hydrographic surveying. London: RICS.

MLA

Dowman I J, Royal Institution of Chartered Surveyors and UK National Group for Communication in Surveying and Photogrammetry. Directory of research and development activities in the United Kingdom in the fields of land Survey, geodesy, photogrammetry and hydrographic surveying. London: RICS. 1974.