TY - SER TI - Scientific American SN - 0036-8733 PY - 1859///- CY - New York PB - Scientific American Inc. N1 - v. 230, no.1-6 (Jan-June) 1974 - v.231, no.1-6 (July-Dec) 1974 - v.232, no.1-6 (Jan-June) 1975 - v.233, no.1-6 (July-Dec) 1975 ER -