(1987). A normal incidence X-ray telescope: Semiannual progress report nos. 6, 7, and 8 for the period 1 May 1985 through 31 October 1986 / principal investigator Leon Golub.
Chicago-referens (17:e uppl.)A Normal Incidence X-ray Telescope: Semiannual Progress Report Nos. 6, 7, and 8 for the Period 1 May 1985 Through 31 October 1986 / Principal Investigator Leon Golub. 1987.
MLA-referens (9:e uppl.)A Normal Incidence X-ray Telescope: Semiannual Progress Report Nos. 6, 7, and 8 for the Period 1 May 1985 Through 31 October 1986 / Principal Investigator Leon Golub. 1987.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.