2018-08-242018-08-241976-09-09http://hdl.handle.net/2152.3/9935SpaceLab Mission Development Test Proposal, Earth Observations Experiment with a handwritten note address to Dr. Thornton from John Kaltenbach.Earth Observations ExperimentDr. William ThorntonSpaceLab Mission Development TestSMD IIIhandwritten notesJohn Kaltenbach