The Admiralty Chart: British Naval Hydrography in the Nineteenth Centuryby G. S. RitchieRobinson1968PDF384 KB
The Admiralty Chart: British Naval Hydrography in the Nineteenth Centuryby Rear Admiral G. S. RitchieAlexander · The Arctic Institute of North America1968PDF223 KB
The Admiralty Chart. British Naval Hydrography in the Nineteenth Century . G. S. RitchieBurstyn · Isis1969PDF121 KB
Chromatography in Geology. By Arthur S. Ritchie. 156 pp. Elsevier (Amsterdam/London/New York), 1964. Price 50s.E. et al. · Geological Magazine1965PDF82 KB
La Riforma sociale. Rassegna di scienze sociali e politicheby D. S. RitchieRivista Internazionale di Scienze Sociali e Discipline Ausiliarie1894PDF536 KB
The Admiralty Chart. British Naval Hydrography in the Nineteenth Centuryby G. S. RitchieBurstyn · Isis1969PDF183 KB
Modem library practice: tutor's pack (A) basic (S. Sayed, S. Ritchie and M. Perry)Haythornthwaite · Education for Information1985PDF299 KB
The Life of a Survey Ship Challenger. Captain G. S. Ritchie, D.S.C., R.N. (1957), 249, cloth, 5· × 8·5, Hollis & Carter, 30sBlewitt · Journal of Navigation1958PDF133 KB
No Day Too Long – An Hydrographer’ s Tale. Rear Admiral G. S. Ritchie. 247 pages, 21·5 cm × 14·8 cm. Pentland Press. 1992. £15.50.Mark · Journal of Navigation1993PDF78 KB