Scientific American Magazine May 1969 Typesetting No Label

Scientific American Magazine April 1969 Synthetic Elements No Label

1969 Scientific American June - Hormones, Phalarope TL

Scientific American (7) Vintage 1973 Magazines

VINTAGE SCIENTIFIC AMERICAN MAG APRIL 1969 STEAM TURBINES SYNTHETIC ELEMENTS

Scientific American Magazine Single Issue November 1969 Inductive Reasoning

SCIENTIFIC AMERICAN Vol. 221, July - December 1969, 6 issues bound in one volume

Scientific American 1969 Ultraviolet Sun Phalarope Truth and Proof Wound Healing