1. The Multiple Variate Counter;Colin,1964
2. Design of Experiments;Fischer,1966
3. Photointerpretation of soils;Frost,1960
4. Geomechanics applied to fracture analysis on aerial photographs;Haman;West Can. Res. Publ., Ser. 2,1964
5. Photogeology of linear features in areas covered with superficial deposits;Norman;Trans. Inst. Mining Met.,1968