McAvennie, Michael; Dolan, Hannah, ed. (2010). «1970s». DC Comics Year By Year A Visual Chronicle. Dorling Kindersley. p. 159. ISBN978-0-7566-6742-9. «The Spectre re-materialized in the pages of Adventure Comics. This time, However, he brought along an all-out wrathful disposition, delivering punishments that not only fit the crimes, but arguably exceeded them. [Michael] Fleisher and [Jim] Aparo's run lasted only ten issues, yet it was widely regarded as some of their finest work, and the character's seminal period.»
Initially, in collaboration with artist Russell Carley, who provided art breakdowns for Fleisher's scripts, (see, for instance House of Mystery #218 (Oct. 1973): "The Abominable Ivy") and other Fleisher 1973–1974 stories at the Grand Comics Database
