00305nam a2200109Ia 4500082002000000100004000020245003800060260002700098300003800125500000500163700002700168  a309.26bR888.MB  aRoy, Prodipto and Patil, B. R., ed.  aManual for block level planningb  aDelhibMacmillanc1977  axvi, 124p. Tables, Maps, Appendix  a  aPatil, B. R. ; jt. ed.