00339nam a2200109 a 4500008004100000050001700041100002300058245006100081260006100142300001700203350000900220120416s1988    ||||||||||||||||| ||    u  aTP 690.3 Smi  aSmith, Augustine J10aTechnological capability in oil refining in Sierra Leone  aFreetownbNjala University College of Sierra Leonec1988  a111p. : ill.  a0.00