David Insull Aquaculture project formulation - Delhi Daya Publishing House 1990 - 129p David Insull & Colin E. Nash: Aquaculture project formulation. Delhi. Daya Publishing House, 1990. 81-7035-150-2--(639.2INS) ENGLISH ISBN: 81-7035-150-2 Dewey Class. No.: 639.2 / FAO