@article {685, title = {Steward Observatory}, year = {1939}, note = {Copies of this are available in the Tree Ring Laboratory, please contact the curator for more information. pcreasman@ltrr.arizona.edu}, keywords = {annual report, Douglass, steward observatory}, author = {Douglass, A.E.} } @booklet {672, title = {Historical Address}, year = {1923}, keywords = {address, Douglass, historic, steward observatory}, author = {Douglass, A.E.} } @article {704, title = {The Steward Observatory of the University of Arizona}, journal = {Publications of the Astronomical Society}, year = {1918}, keywords = {Douglass, historic, steward observatory, university of arizona}, author = {Douglass, A.E.} }