00500nam a2200157Ia 4500 0000005723 20251012174442.0 711019s1966 nyua b 000 0 eng H61 .H43 300.18 Social technology [by] Olaf Helmer. Contributions by Bernice Brown [and] Theodore Gordon. New York, Basic Books [1966] 108 p illus 25 cm. Includes bibliographical references. Social sciences Methodology. 3739 3739