
Reprints:
in DC 100-Page Super Spectacular (DC, 1971 series) #6 (1971)
in The Greatest Team-Up Stories Ever Told (DC, 1989 series) #[nn] ([November] 1989)
in The Greatest Team-Up Stories Ever Told (DC, 1990 series) #[nn] ([June] 1990)
in The Justice League of America Archives (DC, 1992 series) #3 ([November] 1994)
in Crisis on Multiple Earths (DC, 2002 series) #[1] ([July] 2002) [[1]]
in DC 100-Page Super Spectacular No. 6 Replica Edition (DC, 2004 series) #[nn] (May 2004)
in Showcase Presents: Justice League of America (DC, 2005 series) #2 (2007)

Reprints:
in DC 100-Page Super Spectacular (DC, 1971 series) #6 (1971)
in The Greatest Team-Up Stories Ever Told (DC, 1989 series) #[nn] ([November] 1989)
in The Greatest Team-Up Stories Ever Told (DC, 1990 series) #[nn] ([June] 1990)
in The Justice League of America Archives (DC, 1992 series) #3 ([November] 1994)
in Crisis on Multiple Earths (DC, 2002 series) #[1] ([July] 2002) [[1]]
in DC 100-Page Super Spectacular No. 6 Replica Edition (DC, 2004 series) #[nn] (May 2004)
in Showcase Presents: Justice League of America (DC, 2005 series) #2 (2007)

Reprints:
in DC Special Blue Ribbon Digest (DC, 1980 series) #4 (September-October 1980)
in Grüne Leuchte (Egmont Ehapa, 1979 series) #8/1981 (August 1981), #9/1981 (September 1981), #9/1981 (September 1981)
in Green Lantern Archives (DC, 1993 series) #6 ([January] 2007)
in Showcase Presents Green Lantern (DC, 2005 series) #3 ([May] 2008) [black and white]
in Green Lantern Omnibus (DC, 2010 series) #2 ([November] 2011)
in DC Comics Anthologie (Urban Comics, 2012 series) #[nn] (février 2012)
I'm wondering because these books are pretty pricey. I know there's the DC Archives route, but those also can get a little pricey. I just really wanted to read these particular stories and was hoping there might be a cheaper alternative.
Thanks for any help!