Porter, T. R. (1967). Earth-space science teaching tips from TST: A compilation of articles from seven years of The Science Teacher, 1960-1966. National Science Teachers Association.
Chicago Style (17th ed.) CitationPorter, Thomas Reginald. Earth-space Science Teaching Tips from TST: A Compilation of Articles from Seven Years of The Science Teacher, 1960-1966. Washington, D.C: National Science Teachers Association, 1967.
MLA (9th ed.) CitationPorter, Thomas Reginald. Earth-space Science Teaching Tips from TST: A Compilation of Articles from Seven Years of The Science Teacher, 1960-1966. National Science Teachers Association, 1967.
Warning: These citations may not always be 100% accurate.