Johnson Hugh M. Absolute isophotometry of the southern milky way and two fields in orion - Canberra Australian National Unviersity 1960 - vp cm. - Memoirs of the mount stromlo observatory. Memoir No. 15 . Standard No.: 72992 Source: Textual Subjects--Topical Terms: MATHEMATICS Dewey Class. No.: B9641.8, K0