21. IOR/X/12156/2.O-P/1 Reference (shelfmark): IOR/X/12156/2.O-P/1 Title: Triangulation in India and Adjacent Countries Collection Area: Map Collections Languages: English Date Range: 1929 Extent: 1 pamphlet
22. IOR/X/12156/2.O-P/2 Reference (shelfmark): IOR/X/12156/2.O-P/2 Title: Triangulation in India and Adjacent Countries Collection Area: Map Collections Languages: English Date Range: 1929 Extent: 1 pamphlet
23. IOR/X/12156/3.A Reference (shelfmark): IOR/X/12156/3.A Title: Triangulation in India and Adjacent Countries Collection Area: Map Collections Languages: English Date Range: 1928 Extent: 1 pamphlet
24. IOR/X/12156/3.E-F Reference (shelfmark): IOR/X/12156/3.E-F Title: Triangulation in India and Adjacent Countries Collection Area: Map Collections Languages: English Date Range: 1930 Extent: 1 pamphlet
25. IOR/X/12156/3.I Reference (shelfmark): IOR/X/12156/3.I Title: Triangulation in India and Adjacent Countries Collection Area: Map Collections Languages: English Date Range: 1930 Extent: 1 pamphlet
26. IOR/X/12156/3.J Reference (shelfmark): IOR/X/12156/3.J Title: Triangulation in India and Adjacent Countries Collection Area: Map Collections Languages: English Date Range: 1930 Extent: 1 pamphlet
27. IOR/X/12156/3.M Reference (shelfmark): IOR/X/12156/3.M Title: Triangulation in India and Adjacent Countries Collection Area: Map Collections Languages: English Date Range: 1928 Extent: 1 pamphlet
28. IOR/X/12156/3.N Reference (shelfmark): IOR/X/12156/3.N Title: Triangulation in India and Adjacent Countries Collection Area: Map Collections Languages: English Date Range: 1927 Extent: 1 pamphlet
29. IOR/X/12156/7.B-D,F-H Reference (shelfmark): IOR/X/12156/7.B-D,F-H Title: Triangulation in India and Adjacent Countries Collection Area: Map Collections Languages: English Date Range: 1928 Extent: 1 pamphlet
30. IOR/X/12156/8.B&C Reference (shelfmark): IOR/X/12156/8.B&C Title: Triangulation in India and Adjacent Countries Collection Area: Map Collections Languages: English Date Range: 1932 Extent: 1 pamphlet