Editorial
Role orientations of Third World urban planners 9 – 22
P L Knox, C O Masilela
Development-control data for planning research: the use of aggregated development-control records 23 – 37
J Sellgren
Design reasoning by association 39 – 56
R D Coyne, S Newton
Orthogonal floorplans from maximal planar graphs 57 – 71
I Rinsma, J W Giffin, D F Robinson
Mughul gardens revisited 73 – 84
T W Knight
Recursive procedures for the spatial structuring of Christaller hierarchies 85 – 95
J E Storbeck
What is a design? 97 – 103
G Stiny
Balance of representation in water planning: an assessment of experience from North Carolina 105 – 120
B Stiftel
Letter to the editor
Reviews 123 – 126