00787cam a2200253 4500 781105 BD-DhUL 20150101162446.0 740313s1973 nyua b 001 0 eng 73086665 DLC BD-DhUL DLC BD-DhUL GF101 .J63 1973b 910 JOS Johnston, R. J. Spatial structures : introducing the study of spatial systems in human geography / by R. J. Johnston. New York : St. Martin's, c1973. x, 135 p. : ill., maps ; 24 cm. The field of geography. Bibliography: p. 114-126. Human geography. Spatial systems. 7 cbc orignew 2 opcn 19 y-gencatlg ddc BK 26538 26538 0 0 ddc 0 910_000000000000000_JOS 0 NFIC 50253 DUSL DUSL GEN 2015-01-01 910 JOS A151472 2015-01-01 2015-01-01 BK