Analog science fiction & fact (Norwalk, CT : Analog Science Fiction/Science Fact, 1991)
Title from cover.
Vol. 139, no. 3/4 (Mar./Apr. 2019) misnumbered as v. 134, no. 3/4 (Mar./Apr. 2019).
Latest issue consulted: Vol. 134 [i.e., 139], no. 3/4 (Mar./Apr. 2019).
Keywords: Science fiction -- Periodicals; Science fiction, American -- Periodicals; Science fiction; Science fiction, American; Electronic journals