This translation originally published (B57-3013), London: Hutchinson, 1957, classified at 523.85[1]. Originally published as 'Nébuleuses galactiques et matière interstellaire'. Paris: Michel, 1954.
Galatic nebulae and interstellar matter by Jean Dufay. ISBN 0486619583. Published by Dover Publications in 1968. Publication and catalogue information, links to buy online and reader comments.