Burton, William Butler.
Sagittarius spiral arm & the general distribution of hydrogen between 0 & 90 longitude:streaming & geometrical effects on the derivation of density - Sterrwacht Leiden ; 1970
Astronomy
Physics
520/525(043.2) BUR
Sagittarius spiral arm & the general distribution of hydrogen between 0 & 90 longitude:streaming & geometrical effects on the derivation of density - Sterrwacht Leiden ; 1970
Astronomy
Physics
520/525(043.2) BUR