Pierrce, William S. <br/>
       Crack growth in 2014-T6 aliminium tensile and tank specimens cyclically [NASA TN D-4541] 
 / William S. Pierce 
 .- Washington, D. C.: National Aeronautics and Space Administration,  1961 
 .- 37p. 
.- ( National Aeronautics and Space Administration NASA Technical Note   
<br/>Bound vol. contains NASA TN D 4541-4550 
<br/><u>Subject Headings:</u> <br/>Aluminium tensile;