00301nam a22000977a 4500008004100000040005500041100002000096245004100116260003700157300000900194230705b        |||||||| |||| 00| 0 eng d  aNational Science LibrarycNational Science Library1 aHarris, Percy W  aDeveloping tanks and how to use them  aLondon: bFountain Press, c1960  a46p.