Bhatt A B Aerial photography and remote sensing An introduc - Dehradun Bishen Singh Mahendra Pal Singh 1994 - vii, 166p. Bib p. 125-35,Appendix p. 137-64 cm. ISBN: 812110002X Source: General Book Subjects--Topical Terms: Geography Dewey Class. No.: U18:M95(D:28), N4