Modern methods and materials for teaching science
By: by Elwood D. Heiss ... Ellsworth S. Obourn ... and C. Wesley Hoffman.
Contributors: Obourn, Ellsworth Scott, 1897- joint author.; Hoffman, Charles Wesley, 1909- joint author.
Publisher: The Macmillan company
Published: 1940
Place of publication: New York
Language: eng
Number of pages: 351
Subjects: Science -- Study and teaching.
Notes: Includes bibliographies.