resources for teachers National Science Resources Center U.S text bibliography dcu Washington, DC National Academy Press 1988 monographic eng

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xi, 176 p., [1] leaf of plates ill. 28 cm. National Science Resources Center, Smithsonian Institution, National Academy of Sciences. Includes indexes. n-us--- Science Study and teaching (Elementary) United States Bibliography Z5818.S3 S38 1988 LB1585 372.3/5044 0309039347 88025445 880812 20160527192349.0 194870