1973 Feb ANALOG SCIENCE FICTION & FACT Poul Anderson SPIDER ROBINSON Tak Hallus

1973 Mar ANALOG SCIENCE FICTION & FACT John Brunner POUL ANDERSON Herbie Brennan

1973 Apr ANALOG SCIENCE FICTION & FACT George Scithers POUL ANDERSON Paranormal

1981 Feb ANALOG SCIENCE FICTION Poul Anderson CHARLES SHEFFIELD Eric Vinicoff &c

Analog Science Fiction/Science Fact Vol. 91 #1 VF 1973

Analog Science Fiction/Science Fact Vol. 90 #6 FN/VF 7.0 1973

Analog Science Fiction/Science Fact Vol. 90 #6 VG 1973 Low Grade

Analog Science Fact & Fiction December 1960 Poul Anderson