PT - JOURNAL ARTICLE ED - , TI - Calendar of Events—Courses AID - 10.1126/science.162.3854.704 DP - 1968 Nov 08 TA - Science PG - 704--704 VI - 162 IP - 3854 4099 - http://science.sciencemag.org/content/162/3854/704.short 4100 - http://science.sciencemag.org/content/162/3854/704.full SO - Science1968 Nov 08; 162