San Francisco, Freeman, 1967, un volume in 8 relié en pleine toile éditeur, 235pp.
---- BON EXEMPLAIRE ---- Identification of quasi-stellar objects - line spectra of quasi-stellar objects - Continuous energy distribution - Radio emission from quasi-stellar objects - Proper motions - The nature of the redshifts - quasi-stellar objects and galaxies - etc**5759/L5DE