Ronald R Boyce

The bases of economic geography  Ronald R Boyce Paperback. Holt, Rinehart and Winston, 2005-09-14 ISBN 9780030194962     The bases of economic geography: An essay on the spatial characteristics of man's economic activities  Ronald R Boyce Holt, Rinehart and Winston, 2005-09-14 ISBN 9780030811036     Geography as Spatial Interaction  Edward L. Ullman Ronald R. Boyce Hardcover. University of Washington Press, 1980-12-21 ISBN 9780295957111